I have played through all 15 levels and gotten no achievements, I read that you get the for beating stage 1, 10, 15, and 20. That said, none were unlocked, and there are only 15 levels, is there a secret way to unlock the last 5? And do you get every achievement at once after beating stage 20?...

Im looking some ppl play this and another game coop trough remoteplay :D you can add me

两个先叠好 同时往右走一下 上面的不需要再摁了 只要下面在走上面也在跟着走 但是这两个乌龟的壳也太滑了吧