Added 8 more pictures:

You can store items here for later use:

You can cause the water to rise higher than it's supposed to, flooding the are might be possible:

If you have the rod you can carry more than 1 item:

You can use the combined weight of multiple items ( 2 is enough, you'll just need to hold them in a specific way), and glitchy collision that's in this area to get to the bottom:

Once you get deep enough water physics stop affecting you:

You can use the weight of items to access this area as well:

You can use this hatch to clip items and sometimes yourself through the pipe:

The bombs in the worm area activate only if you grab them, therefore you can carry them on your head and push them around, so you can basically take a bomb anywhere in the heart area. I haven't really experimented on the possible uses of this yet.

The reason why sequence breaking doesn't work. Claw number x does not accept other orbs than orb number x, so the wrong orb just gets stuck like this:

This just looks fancy:

Taking the rod through this hatch...: Results sometimes in this: You'll clip through the wall and end up here:

This one can be used in a run. If you pull out the top right plug first, it can fall on one of the wires and pull out a plug for you. Sometimes you even get all three, but it's quite rare:

It's possible to re-grab a plug:

Pausing the game during this (or a few other parts)...:

...allows you to play the game while it's paused...:

...but your movement will be broken: Reloading the game fixes this.

This game is extremely glitchy, but most of the glitches just force you to restart the game as you get stuck after performing them. There's also a sequence break (you can access the underwater area before getting the diving upgrade), but it's not beneficial for a speedrun either.

Luckily there also is a super easy glitch you can do to skip a huge chunk of the mines. I unfortunately don't have a way of recording it, but I'll try to explain it as closely as possible:

After entering the mines, proceed normally and drain the water (there's also a way to skip draining the water for the second time but it is a bit slower than doing it normally). After draining move into the area where you get the light orb and the diving upgrade. Do the first part where you have to move the light orb through the "obstacle course" to open the door. Go back to the entrance of the mines. Grab a bomb (or any other object, a bomb is the most convenient) and throw it at the pipe in a specific spot, and it will trigger the hatch in the pipe to close. This will allow you to pull the lewer and exit back to the area with the heart. The orb will magically appear at the other side and you can move on to the next part.

Here's a couple of screenshots: Before the glitch: After the glitch:

Also here's an useful console command for loading spesific areas of the game in case you weren't aware of it: open <mapname> The map names are heli-underground, heli-pacemaker, heli-mines and heli-factory.

If you need to ask something feel free to add me on steam: http://steamcommunity.com/id/TheRealRaNDoMiZe/