I made some changes about bomber dude. They include implementing a 'teacher key', a round system, a much better interface, more tiles, memory optimisations (such as generating some sprites at the program launch), more bonuses, etc...
One funny thing happened: I removed 700 bytes worth of data, but the overall size of the ppg was reduced by 5 bytes !
The major changes are visible here:
Download:
http://databob.free.fr/Upload/Bomber%20Dude.zip
I also was contacted by someone interested in improving the AI. I hope he won't give up after seing the source...
[EDIT:] Screenshots added; my post was looking a little bit empty...
[EDIT:] Thanks Vertyos for the faster alternative.
).
this is a mine, and
this what I'm talking about 

