THE MYSTERIOUS DEVICE

Overall★★★★★★★★★★3.15
Fun★★★★★★★★★★2.98
Innovation★★★★★★★★★★2.98
Theme★★★★★★★★★★2.97
Graphics★★★★★★★★★★3.61
Audio★★★★★★★★★★3.39
Humor★★★★★★★★★★2.94
Mood★★★★★★★★★★3.11
On one of the countless planets in the universe lived a creature who called itself Grumi.

Grumi always carried a strange device with it.
No one knows whether it was always so hostile, or if this sinister tool changed it over time.
No one knows where the device came from. But one thing is certain — when activated, it affects everything around it.
The signal it emits carries only one thing: anger.
In truth, Grumi is harmless when left alone. It always believed it was the only living being on the planet.
But one day, its quiet solitude was disturbed by other creatures that began to appear on its territory.
Frightened and confused, Grumi uses the device to drive them away.
But the device does not work the way Grumi thinks.
The signal does not simply scare others — it changes them.
Creatures exposed to the beam become increasingly aggressive.
And if they remain under its influence for too long… the effect becomes irreversible.
Now Grumi must face the consequences of the signal.

CONTROL: only mouse

Comments76

Timo5034
Timo503420 Apr 2026, 17:37
I've converted them all to stone (?), then they followed me and I lured them into the portal (?). I'm a bit confused xD. But it was fun figuring it out, although I'm sure I missed something :D
Itero Protoauthor20 Apr 2026, 18:45
@timo5034 There are several options for winning or losing 😉
Thanks for playing my game 😃
Loki Drams
Loki Drams21 Apr 2026, 09:48
I liked the start menu a lot. I have not understood the X (for quitting I suppose) so I smash it multiple times, but except that, it's lovely.
I think it takes a long time to transform enemy to stone and after exploding them, and the drop is very rare (maybe my luck). The enemy doesn't kill us when they dash in us? Except for that, and the graphics resolution being very different between sprites, i liked the game. Good job :thumbsup:
Sariiger
Sariiger21 Apr 2026, 09:55
Really neat game! Got 4 endings (sad, mushrooms stolen, crazy, and good). Love how there are multiple win/lose conditions!
anku21 Apr 2026, 11:00
Interesting game — nice UI and a consistent art style.
Itero Protoauthor21 Apr 2026, 13:29
@loki-drams NPCs turn into people like you randomly for 3 to 5 seconds in my opinion) They don't hurt you, but they get in the way (especially when there are a lot of them)
Thanks for playing) 😊
Itero Protoauthor21 Apr 2026, 13:30
@sariiger 😃 I am very glad that you liked my game) and thank you for your feedback. Good luck!
Psevdonim
Psevdonim21 Apr 2026, 15:08
A rather confusing gameplay experience, but I managed to complete the game with two endings.
nkvz21 Apr 2026, 15:18
wow. its me!
nice visual style.
NullMoxy21 Apr 2026, 15:37
Cool Artstyle and menu design.
Would be cool to have different enemy designs or the player to have different weapons.
Itero Protoauthor21 Apr 2026, 19:10
@nkvz Yes, there are similarities 😃
Thanks for the feedback!
Itero Protoauthor21 Apr 2026, 19:12
@nullmoxy Thanks for the feedback. I'm glad you played my game 😊
Tryam
Tryam22 Apr 2026, 17:37
A fun game with good graphics. The sounds could use some work — the laser sound is a bit annoying.
Pacelin
Pacelin22 Apr 2026, 17:37
#### RU
Сначала я ничего не понял. Потом я снова ничего не понял. Но затем я осознал, что ничего не понял. Это всё, что я понял.

Автору есть над чем поработать, но даже так игра уже весёлая, хоть и немного непонятная :)
По визуалу, звукам и дизайну всё в игре хорошо, надо поработать над понятливостью :)

#### EN
At first I didn't understand anything. Then I didn't understand anything again. But then I realized that I didn't understand anything. That's all I understood.

The author has some work to do, but even so, the game is already fun, even if it's a bit confusing :)
The visuals, sounds, and design are all good in the game, but the game needs to work on its clarity :)
Stormdrill22 Apr 2026, 17:43
My favorite part was definitely the monster designs
Itero Protoauthor22 Apr 2026, 17:43
@tryam yes, I later realized that it wasn't a very good sound for something that would be played frequently. Thank you for your feedback 😊
Itero Protoauthor22 Apr 2026, 17:45
@pacelin it didn't take a couple of minutes and hundreds of mouse clicks to figure it out 😉 thanks for the comment 🤗
Itero Protoauthor22 Apr 2026, 17:55
@stormdrill really? and I only spent about an hour working on them) I wish I could have added character animations. They would have been even more attractive (or cute and ugly)

👈 this is great! why don't I dream about this? 😁
Abiral
Abiral22 Apr 2026, 17:59
I liked the graphics and the follow feature that triggers after damaging enemies. The sound effects could be improved, overall great game, enjoyed it.
Itero Protoauthor22 Apr 2026, 18:07
@abiral Of course, it can always be done better. Thank you for playing my game 🤗👍
Stormdrill22 Apr 2026, 18:09
@itero-proto Looks like you’re pushing the limits in 2D, while I’m focusing on the 3D side of things. To be honest, I’ve started many projects before, but this is the first time I’m actually pushing through to release! Thanks for checking out my portfolio 😉 Honestly, I could never pull off 2D sprites like you do
Theg
Theg22 Apr 2026, 19:09
a little confusing. some nice presentation going on. it felt a bit like i didn't have much control over the enemies taking the mushrooms
Itero Protoauthor22 Apr 2026, 19:47
@theg you can influence their mushroom picking (beam), or you can not. they move in a random direction 😁
LDJam user 38980622 Apr 2026, 23:23
I love the art style! And the gameplay is fun.
The font in the tutorial is a bit hard to read but I like its presentation and the game is not too difficult to understand so that's not a big issue.
Great game! Very cool stuff.
Roitchie
Roitchie23 Apr 2026, 08:09
Very interesting entry. The art and music is great. I especially like the characters and menu UI. I felt bad for the crying one when I converted it. I like the multiple endings. Makes it more repayable. I got the crazy ending first time but then went back and tried to avoid using the beam on them once they had been converted. The only issue I ran into was if there are a lot of converted creatures they can get you stuck in a corner. Great entry otherwise. Well done!
Itero Protoauthor23 Apr 2026, 10:52
@roitchie this is the most difficult ending 😊 you have to make sure you don't get crushed 😄 it's difficult, but it's possible. Thank you for playing
god138523 Apr 2026, 12:10
Interesing idea, cool art, but it gets a bit to repetitive on default ending with killing all enemies one by one. I would rebalance the hp. But overall it was fun, beat the game, cool entry
Itero Protoauthor23 Apr 2026, 13:08
@god1385 Yes, you can kill everyone, but then you won't be able to unlock the other endings. Thanks for feedback ☺️
krakadushka
krakadushka23 Apr 2026, 17:31
Yeah, I killed everyone... They shouldn’t have touched my mushrooms.😈
JoeGreen23 Apr 2026, 18:44
Визуал и звуки очень классные. Еще бы альтернативные способы управления и вообще огонь
Soul Grinder
Soul Grinder23 Apr 2026, 20:03
Nice idea for the theme and zapping them was fun. I liked the graphics too, good work!
Itero Protoauthor23 Apr 2026, 20:11
@joegreen на мышке не удобно? благодарю за отзыв 😊
Scottyartt24 Apr 2026, 11:12
style is nice
magus77
magus7724 Apr 2026, 11:29
good effort! i must say i really like the artstyle choices. The greyscale with just a gradient color added to it makes it pop and also focusses attention for the player.
Itero Protoauthor24 Apr 2026, 11:51
@magus77 I'm very pleased that you like my art. Thank you and good luck with everything😉
Itero Protoauthor24 Apr 2026, 13:14
@valentinwb Thank you ☺️ It's strange, but I didn't actually spend much time on the visuals 😳
Byte Bark24 Apr 2026, 23:01
I like the art style. the graphics and font are consistent with the overall theme. Nice job!
Shnappy25 Apr 2026, 10:47
The game is quite fun. Nice soundtrack and effects add a lot to the funk. The palette choice yields a very interesting visual style. It feels like some animations would make a massive difference, but for a solo project it would really be hard to do push for more quality. Great job!
LDJam user 240296
LDJam user 24029625 Apr 2026, 15:31
Nice idea and palette for the visuals! At first try I didn't get what I should do, so I was just shooting all the creatures till they explode haha. But still it was pretty fun!
Conduit
Conduit26 Apr 2026, 07:02
I felt this game was very whimsical and had a big 2000s flash inspired flavor! the controls also reminded me of that time in gaming and I just a good, albeit short and sweet, time with it. Well done and thanks for the cool game! I got the good ending btw

Sidenote: The itch HTML5 version was broken on my end, I'm using Google Chrome
Itero Protoauthor26 Apr 2026, 08:42
@conduit thanks for the feedback. I'll check my itch.io game now 😃
Itero Protoauthor26 Apr 2026, 08:43
@neshtyak This is my favorite color combination 😊 thanks for comment
Itero Protoauthor26 Apr 2026, 08:51
@shnappy Yes, I didn't have time to add animations unfortunately 😪
SitronX26 Apr 2026, 13:30
Interesting concept. Althought i would probably choose different controls to be more intuitive. And i like the style, with Full screen button! 😁
Itero Protoauthor26 Apr 2026, 13:35
@sitronx thanks. I made a game for one-armed people 🤗
DontGiveUpBoy27 Apr 2026, 13:18
I loved this game so much! Especially graphics sounds and idea. Small beautiful and funny game!
DontGiveUpBoy27 Apr 2026, 13:36
I love all cute and scary style of monsters. Cute sounds. I loved the looking of mysterious device. It looking like phone. There are a lot of beautifull ideas. I'm thrilled because it even has multiple endings. Beautifull work!
Itero Protoauthor27 Apr 2026, 16:04
@dontgiveupboy thank you for the incredible positive comments! 🤗🤗🤗 I hope you've opened all the endings
VenomousMouse28 Apr 2026, 07:30
Very nice visuals and good sounds. Overall fun game.
CptNero28 Apr 2026, 17:00
Pretty good game, but getting stuck on the gray enemies following you wasn't very fun :cry:
Wizard28 Apr 2026, 19:15
Cool idea of using a signal beam to make npcs more hostile, kind of like where animals become aggressive when a speaker plays a sound that humans cant here but they can. really like it. I feel that the signal beam could have had a cooldown, as it makes it fairly easy to cheese the npc's a bit, but other than that cool game. Also, really like the art style, cant wait to see where this game goes post jam.
Itero Protoauthor28 Apr 2026, 20:33
@wizard I'm very pleased to see such feedback 🤗 after the game jam, there will probably be another game jam and a completely different game. But the visual style will be similar 😉
LDJam user 42432629 Apr 2026, 05:45
The concept is interesting overall—there’s already some lore and charismatic characters, but the controls felt quite unusual.
Movement is generally much more intuitive with the keyboard, and user experience is important.
Itero Protoauthor29 Apr 2026, 16:45
@pipetto Thanks for the comment! I made it for one-armed people 😊
HappyTrollAngus30 Apr 2026, 18:22
Delightfully absurd and silly. Love the creativity in the style and goal of the game, and the multiple endings. Nice simple gameplay that works.
Coda Highland
Coda Highland3 May 2026, 20:46
I'm quite confused! ^^() I don't really understand what's going on, and somehow I got the "stole all of my mushrooms" ending even though there were still clearly mushrooms on the screen. But it handled fluidly and it was an interesting experience. Graphics were pretty nice too!

My browser's audio was broken so I had to come back and try again, and the sound design is solid. Well done there!
Itero Protoauthor4 May 2026, 04:50
@coda-highland well, there's a big mushroom in the game that can't be stolen)
Thank you for checking out my game. And good luck 😉
AO-856 May 2026, 19:18
I love the art style! The font in the tutorial is a bit hard to read but I like its presentation and the game is not too difficult to understand so that’s not a big issue. Very cool stuff.
Itero Protoauthor6 May 2026, 20:34
@ao-85 thank you for the feedback 😉 your game will definitely be in the top
tetrapteryx
tetrapteryx7 May 2026, 17:42
The controls took some getting used to, but the feedback from blowing up creatures with the beam feels SO GOOD. Sorry little dudes!
zimny11
zimny117 May 2026, 18:34
I like the idea of turning "npc" into enemies that chase you, but controls are weird. I would prefer for movement to be classic WSAD or Arrows. Most of the tries like 3-4 of them just lock me and I had to start over which did not felt great. The art is really well done and music is fun too!
NuclMe7 May 2026, 19:03
This is a really cool little game, and the gremlins are such a fun concept! I did run into a small issue where one gremlin got stuck on the right edge of the screen and I couldn't seem to kill him. Despite that minor hitch, the overall experience was great and the polish is impressive. Truly high-quality work for a jam entry!
Itero Protoauthor7 May 2026, 19:40
@zimny11 I'm very glad that you liked it and that you didn't like it 😊😊😊
Itero Protoauthor7 May 2026, 19:43
@nuclme Wow! I've never encountered such a bug! Thank you 😉

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