It's nice to have some fresh eyes on this, cuz us two have been playtesting it over and over again, so we got used to the controls. I think its a good idea to move the interact and swap key to the right. Maybe even the left and right mouse button. It is indeed more logical to put the jump key above the move keys. CHanging the player's speed would be a bit more difficult, cuz there are some levels that require a specific jump that is juust possible with the current speed. But it wont be that big of an issue to tweak that. Anyway, thanks for your feedback!