I wonder if I'm about to be ninja'd?
Level 1 powers - 5
Level 2 powers - 4
Level 3 powers - 4
Level 4 powers - 4
Level 5 powers - 4
Level 6 powers - 3
Level 7 powers - 3
In all cases, you can select a lower level power in place of a higher level power (So if you're suicidal, you can select all 27 powers as 1st level powers).
Edit: Got me by a minute. ^_^ Stupid doll! I didn't know there was a 'Geno Ninja'...