This Mod includes a checkpoint system for storing and teleporting to player positions, as well as a debug menu that shows information about the player  
(player position, player speed etc.)

Checkpoint and Debug Mod

Retimed Worldrecord Splits

Dungeonfire

flipybitz

Polarity

64couette

zibson

AndrzejGra

Pletcho

[TOOL] Polarity Mod Loader (with checkpoint system!)

Optimal settings?

How does 10 cube boost work?

The 11 cube : run-killer or we doing it wrong?

Glitchless ?

Level 11 unbeatable - Please help

MrMopi5000

Pomchee2

Xenia64

damagak

Xcvazer

yyna

FatMan922

ShiNruns

OctoDus

gonzoliad