...and hard. The white-bloods are pretty tough to fight, even on Kindergarten. Still, that difficulty makes some of the levels really good. 'The Rise and Fall of Dugit' is awesome, as is 'The Asphodel Meadows'. However, I would note that Aeon has some major and some minor flaws. For instance, the first Green Trooper on Lapsis Linguae is insanely aggressive, to the point where I was listening to bullets clinging around my head while saying to myself 'What is going on here?' Still, at least he isn't too hard to kill. You just need to get your grenade to land at his feet. Furthermore, vacuum levels (aka 'Words Which I Command' are never fun. G4 Sunbathing was the rare exception, and Acme Station was just plain rough. In sum, don't do vacuum levels unless you know how to really make them fun. To top things off, you really need a pattern buffer at the start of 'Blaze'. Even so, Aeon is very fun to play. This scenario should easily get 5 stars once some of the issues are tweaked.