Defense Games
I find it just a little bit ironic that all of these games include defending by attacking. Who's the good guy here? It really doesn't seem to be you. I'm now kind of getting the urge to hit someone over the head with a medieval-era shield. Now THAT would be fun.
Anti TD
Those turrets can't stop you!
Gobtron
Is this among the top 10 most horrible ways to die? Probably.