geoDefense, on the other hand, is much more action-oriented, almost like an arcade game in tower defense guise. It starts with the Geometry Wars-inspired graphics. The creeps are hyper-colorful shapes moving through a grid. There is eye candy aplenty as they pop like fireworks, sending bouquets of energy flying and rippling through the background.
The gameplay matches this high-energy presentation, too. The game's 30 levels are split into Easy, Medium and Hard tiers of 10 levels each. The Easy levels are fairly sedate, but things start to get hairy immediately on Medium. The level designs do a good job of switching things up on you, both in terms of layout and win conditions.