Once you have run through the level your doppelganger emerges to race you, running just like you ran before. If you win the race against your doppelganger you will be thrown back, racing your ever faster self.

Use the arrow keys to control yourself. Note that you can also slow down or accelerate during a jump.

You can download the game and its source code from GitHub.

Published Nov 28, 2017
Release date Nov 28, 2017
TagsGitHub, jumping, Runner, throwback
LicenseMIT License
Average sessionA few minutes
InputsKeyboard, Touchscreen, Smartphone
LinksSource code


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Really cool game, good job! It was pretty addicting, I played it for quite a while.

A couple of comments I had: 

- I have no gripe with the level being hard, but it would be cool if the doppelganger persisted for more than just the next one life. Iow, if doppelganger would always be the "best" run you have completed overall instead of only the last run.

- I also ran into a bug where the avatar and the doppelganger were both OK, but the game still thought I died in spots

Overall I love the idea of a running game like this

Fantastic! We're very happy that someone made it through the level. Thank you for your feedback and your bug report. We agree it's too punishing, as islemaster also mentioned, the doppelganger should always be there once he's unleashed. We are trying to reproduce the bug, but it seems like the doppelganger alter ego just has stronger suicidal tendencies than the player ego. I've also watched a friend play and how his doppelganger half-heartedly suddenly hopped into the abyss. Did that bug always happen in your case or did the doppelganger mainly run through the entire level?

Nice art man!

Just a tip, try including some score in order to give the player a wish to play again! Besides that, it's pretty amazing!

Great, thanks! I'm not so keen on scores, level-ups and collecting coins on question mark boxes myself, but I get your point. I personally thought making the doppelganger fade a bit more every time he reappears would give a hint that something is advancing in some direction. Maybe it would even bring up the question what would happen if the doppelganger fades away entirely? :-) But so far most feedback we got was that people didn't even get to see the doppeganger once because the level is too hard. We are aiming to fix that.