Board Thread:Questions and Answers/@comment-29176641-20160720074804/@comment-27095444-20160721102238

Beat Cli-One without true forms? Good luck with that...

It's nearly impossible, unless you have good uber rare cat. Anti-alien uber would be the best option, but an uber rare cat with great DPS could still do the trick.

I've beaten that level thanks to Kalisa. But I had all true forms and I used my free baby boom. So in the end I just spawned 3 Kalisas at once.

So first you should obtain all true forms and then you need to get some of the crazed cats as well. It will obviously take you some time...

But after all, Cli-One is no pushover! I was stuck at that stage for a long time... So I was really happy when I beat it.