Touching a Safety Net resets your ability to jump, allowing you to jump from places where there are no solid blocks to stand on

E.g. The player is able to jump from mid-air after falling into the nets below

Touching a Safety Net resets your speed to zero when they didn't in the original PR2 client.
They simply reset your position while allowing you to maintain your speed.

After bumping a Finish Block in Objective Mode, bumping subsequent Finish Blocks does not do anything.

Flying upwards with Cowboy Hat is much faster than it is in the original PR2 client.
This only happens when you have a Cowboy Hat, and does not happen if you are swimming in water without a Cowboy Hat.

Your speed with the Cowboy Hat is also dependent on your Acceleration stat when it shouldn't be.

On Pixel Perfect by Devious Taylor (6511621), you get stuck at this Up Arrow block.
It launches you into the net above your head when it doesn't in the original PR2 client.

This could also be caused by the player or net hitbox not being identical, but I'm not sure.

After being rotated if you hit a net or fall out of the level you are reset incorrectly

Holding Up + Right here should make you fall through the blocks, but it no longer does.

The sword should break 2x2 here, but it only breaks 1x1
       

Mines can't be placed where another block was before, e.g. crumbles, bricks, mines (including placed)

Prev Title: Mines can't be placed in a previously occupied spot
(See post below for update reason)

When the vanish block is in this position, superjumping like this should bring back the vanish block, but it doesn't