Board Thread:Questions and Answers/@comment-46.144.17.81-20170625162801/@comment-30336302-20170627061110

Depends. If you are playing in a long track with only one exit, 2-3 4/2 spike factories can already pop them totally. If you are playing in very short with multiple entrances, then 12 is also a bit hard. BTW, why don't you try it yourselves?