You can Jump on enemys heads. you can manipulate enemy movement to use them as help for climbing stuff.

Yeah definitely could help if they are in the right place at the right time.

just noticed that SmokeyLogic used it in their speed run. awesome

The issue with jumping on their heads isn't that it isn't useful, it's that the times it is useful with current routes makes it SOOOOO RNG... For example, the record for the Any% uses jumping off someone to get enough height to get on top of yellow card van. I find it really hard to get that enemy to be in that exact spot to replicate it consistently.