Thanks - I'll have a root around and sort out my code for you to have a look at!
Might have a play around with Invaders and report back my findings!
I have one game to finish and upload -Dragonfire and was asked to make Flappy Bird have a wider screen - which is proving to be trickier than I thought as everything is coded for the width I have set the screen. On top of this, my son has challenged me to do something on the PC (he is using unity and doing 3D - no idea on this) so I am wading my way through an AppGameKit primer at the moment (loved Blitz on the PC but more modern languages have a lot more built in). And now you've thrown in Invaders...
At the same time, one game I'd like to have a crack at is Road Runner as this was never converted to the Amiga...so much to do and so little time!!!
Flappy Bird thread here which shows how my thinking has changed over time:
http://eab.abime.net/showthread.php?...ghlight=flappy