Here's something I'm working on called JetPac. It's based upon an old Spectrum game:
UP Arrow key = Thrust
Left & Right Arrow keys = Left / Right
Spacebar = Fire laser
Jetpac was awesome :)
Just remember - Jetpac isn't Jetpac unless you're collecting rocket parts :)
When you're finished, try a remake of Lunar Jetman !
Oh there'll definitely be rocket parts, fuel and other things to collect. <img src="smileys/smiley2.gif" border="0" align="middle" />
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I can be wrong but I believe when he's not using the jetpack, the gravity should be stronger and he should fall faster.