Bug: A flyer somehow got outside of the tunnel system and got stuck. This seems to have caused the waves to stop progressing. With no "next wave" button, this makes further progress impossible.
Level 4 has got to be the most retarded rts level I have ever had the displeasure to have imposed upon me. Protecting a truck you cannot tell to stop? And the enemy focuses all of its fire on said truck, completely ignoring all of your troops despite any damage you cause? Just. Lame.
Poorly done. The paddle shouldn't overlap the puck (unless you figure out a way to add a feature that's the equivalent of lifting the paddle to trap the puck, but you don't have that).
Also. The added limitations on spells is ridiculous. When you get to the first castle, you have no magic whatsoever. What's the point in having a constantly increasing magic pool if you have no spells to spend it on?
Multiple lives can be pointless in places - if you get killed by seeking ships, you are most likely completely unable to clear the screen of them after you respawn, and will just lose all your lives in one spot. You need some way to balance that - temporary invulnerability after respawn, or make the ships leave the screen when you die so you have a chance.
Adventure mode is INSANELY frustrating. More often then not, you die not because you suck at getting combos, but because THERE IS NOONE THERE TO SHOOT YOU and get you into the air. So you fall into a hole. Because noone shot you. The latter levels should have MORE enemies. You shouldn't die because there were too few of them to even launch you across one stupid little hole.
Also. The AI is not very bright. It doesn't use sniper bots to snipe. And it doesn't use unblockable creatures to block, even if the incoming attack is going to kill the computer off.