Hi, I'm starting to run the game and I found you can do a checkpoint abuse at the end of chapter 2.
I wondered if it was known, and if it really saves time.
It lead directly after the big door with 5 waves of enemies in chapter 3

Hiya,

IIRC you can use the final checkpoint in Chapter 2 to warp to the final encounter of Chapter 3, which would be faster. Neat that you found that, though!

I just failed a run where I used it. I'll post a link when it's up.
I think it saves up to 30s if done perfectly. Also, i Don't know if you can use it with another character than blake, because I use her ultimate.
I'm mad because I failed having all the luck. You need right path at chapter 2 and right path at level 3, wich is a double luck around 1 out of 8 I'd say.