Not a bad start - it's very tall (doesn't come close to fitting on my laptop screen) so I'd suggest shortening it a bit. It'd also be quite cool if the aliens could shoot at you?

Nice start! Quite hard, but definitely playable. As above I'd recommend shortening it a bit though - doesn't fit on my screen either!

Hmm, it still seems quite fast - perhaps making the jumping bigger (higher jump) would help? Also, it's a bit tall to all fit on my screen at once, so making it shorter would probably also be a good idea.

Nice start here. My only complaint so far is that the scenario's a bit big (doesn't all fit on my screen at once.) Making it a bit shorter would be dead easy and stop most laptop users having to scroll up and down whilst playing it!

I managed to get rid of all the enemies, but the jumping and movement is very fast! Any chance of slowing it down a bit? It's quite difficult to jump onto platforms and suchlike at that speed.

There's an error with your picture at the end of the game - you need to put it in the images directory in your greenfoot project folder and then reference it from there. Also, am I meant to keep the big powerful golden ball going into level two?