Agree.
Well, it has a little bug too On REAL MSX's it shows part of the sprite at the upper left corner of the screen, sometimes.

I got 2 items in about 5 mins, it's that 50% of the game? 

But I really prefer those gfx much more, even if background is only black. Tho I found Teodoro more playable. I hate all the green things that allways try to kill me 

Again, I agree with theNestruo... graphically that's the one looking more MSX-stylish and all the other details added to the speccy version are very nice ... music&fx are very nice too ... but the harsh collision detection gets me out of my nerves! there are moments where it seems you can't go ahead without being harmed and that's something I don't like at all. I think you should consider to adjust the collision detection a little bit.

Anyway, congrats for your entry... I hope we don't have to wait too much to see "Baboon!"

@viejo: testing the speccy version I noticed they use an fx when the player gets close to the surface to get oxygen and I missed that in your version. Maybe you could add it too to the bugfixed version