Thank you for the replies!
@Nagval333, that's a great point, the end-of-level would be nicer with spacebar! We wanted people to have to read the tutorials and not (perhaps accidentally) skip through them, which is why we chose enter for that one. Will definitely consider changing end-of-level to spacebar!
@jalex I'm sorry to hear! 😞 On my laptop I can't have a lot else open for it to run well (particularly nothing else stressing the GPU, even Tiled or Logic). Might not work on older comps 😕
@khleug35 Many thanks!
FYI just pushed experimental gamepad support if you happen to have a PS4 controller etc. lying around. (The controls won't be shown on screen so not for the faint of heart.)