ok there was quite enough of games of this kind, but still
pros:
old ye good
ascetic ye good
everyone loves catz
cons:
bug found: rainbow doesn't disappear upon defeat
only 3 special attacks, and they give very different amount of trouble (need balancing and more attack types)
completely random. Doesn't seems that time somehow affects attacks
i think it also needs 'easy mode' (slower) for less experienced players (I myself just got 51036 milliseconds) and 'hard mode' (extra chalenges) for those people who can stay on field for 10 minutes or longer (I saw one scored 70+ minutes, wtf how?)
tl;dr: nice now, but needs updating and upgrading, will be great after that