I did just that, nitrofurano, and now my house is on fire and my brain has been eaten by runaway sharks.
I tried again and it is working now. Provided the experience is being in a pink screen and while some piano notes are played by my hitting the movement keys. With Isaque's games, I never know if it's some bug of the linux version or if it is really what it was supposed to be.
P.s.:I reported your post as off-topic by mistake. I'm sorry about that. I'm trying to understand how to undo the report, but given that the text of the report is a reply to you directly, I think it is pretty clear what happened.