1. more enemies on screen at once in first few levels
2. enable more shield and weapon upgrades
3. The explosions feel delayed, make them happen faster+right when the enemy dies
4. Get music that matches a space battle, not a happy adventure game
@ EndlessSporadic
Yah I uses that in defense mode and got about 6,000,000-7,000,000 points
I ended up getting stuck between the wall and 2 barricades and the demons wailed on me :(