
Koppy Kopsocks (DEMO)
Jump in!
In this platformer, you play as Koppy, a kangaroo wearing ugly (but magic) socks that grant jump powers!
The game is now avaliable to be played by the public with its latest build. But only with the intent of receiving feedback about the current gameplay state.
Game made on GB Studio 4.1.3, developed by jackalocked.
Music composed by ENAHU64.
CONTROLS
| Arrow keys / A / D | Walk [double tap] Sprint |
| Z | Jump |
| X or Down arrow / S | Build up [hold], Super Jump [release] |
| SHIFT | Pause (Then press A to un-pause) |
Super jump mechanic
Hold the X or Down arrow/S key to build up a jump. The meter on the left shows how much you're building up and has a limit on how much you can do it.
And then, release the button to do a Super jump! The jump will be as high as the amount you've built up.
You can build up whenever you're standing, walking, or even in the air!
Enemies!
There are (in the current build) 4 types of enemies:
| Enemy | Behaviour | Weakness |
| Mice | Roaming | Jump over them |
| Birds | Flying (horizontally) | Jump over them |
| Moles | Roaming | Jump over them twice |
| Spider | Moving up/down (vertically) | Jump over them |
OTHER PLACES
Follow Koppy's development on Gamejolt & Bluesky
You can also play & download it on Gamejolt.
Did you know that Koppy Kopsocks actually started out as a simple Scratch project? The prototype can be played directly on the Scratch website!
| Updated | 10 hours ago |
| Status | In development |
| Platforms | HTML5 |
| Rating | Rated 5.0 out of 5 stars (1 total ratings) |
| Author | jackalocked |
| Genre | Platformer |
| Made with | GB Studio |
| Tags | 2D, Game Boy, kangaroo, No AI, Retro, socks |
| Average session | A few minutes |
| Languages | English |
| Inputs | Keyboard |
| Links | YouTube, Gamejolt, Bluesky, Blog, Instagram, Newgrounds, TikTok, Twitter/X, Patreon |
| Content | No generative AI was used |
Download
Click download now to get access to the following files:
Development log
- Huge update, huge jump (0.9.0)18 hours ago
- Title cards + ROM avaliable to download! (0.8.3)24 days ago
- Improved menu interfaces!31 days ago
- Sprint to this new update!34 days ago
- Happy new year! Here's a happy new update!82 days ago
- New spooky content! Happy halloween!Oct 31, 2025
- 0.7.1: PatchAug 25, 2025





Comments
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I love the setting and 8bit atmosphere here
really cool gb game has a lot of potential would love to see this in a expanded form :)
This looks really cute, love the art and all! Would love to work with you in the future!
Hoppy... Hop... Socks... oh my God guys... this is deep !
Real