Thanks to everybody who has played and provided feedback for George The Gentleman Frog
I have just released a new version with a skill level selector:
CHAOS: This is the previous version effectively
DIFFICULT: Fewer enemies than the previous version
NORMAL: Far fewer enemies than the previous version, and this is the default skill level
Have also added P as a pause key, as ESC would close full screen.
Hope those of you that found it too busy can find the chance to try it again.