SuperTux version: supertux2 git.0.4.0
System information: Linux Mint 17.3 64-bit, kernel 4.2.0-35-generic
Jump as instructed in the screenshot.
The default jump key is "space".

Isn't the default left/right/up/down now a/d/q/s now?
Fresh install, fresh config - not inherited from an older game version:

OK, this should probably be fixed then. The only problem is that there is no easy way to handle every single keyboard arrangement in a picture.
How else can I help?
@brmbrmcar we only have to cater to arrow key + space bar users. it is objectively the best way to play tux and everyone who uses wSAD (get it, cause its sad) is wrong
I don't use it! I was just mentioning that I thought it was the new default!
it is objectively the best way to play tux and everyone who uses wSAD (get it, cause its sad) is wrong
You cannot objectively judge this. There's quite a few people using vi (and other applications) with the hjkl keys. Some even say that's the way they're able to type fastest.
The best way to fix this is to use the default keymap and add a note below that depending on the user's keymap, this might be different.
i was joking... yet again