The frequency of these bundles is kind of taking away their luster for me. Oh well; the money goes to charity.
At first I wasn't planning on buying this bundle, but then they added The Binding of Isaac. I love twisted organic design (Giger, R-Type, Artesneit, etc), so I couldn't pass this up. Fun game, but the controls are kind of poor.
I really, really want to see Aquaria be added to another bundle one of these days. I missed it the first time around.