Powerup Ideas!

I have some new powerup ideas, for example:
-Respawning Time Travels
-Marble Doubler: Doubles your marble, the duplicate goes in the opposite direction of your marble.
-Super Warp: Warps your marble to the nearest destination trigger.

And by the way, you could also add text-to-speech in the help triggers.

Respawning TTs: Already in PQ
Marble doubler: double in size (like a mega marble)? Or double powerups (like MBPU's doubler)? Either way, not sure how this would be used
Super warp: Seems unnecessary, not to mention destination triggers are normally invisible. Just use a teleporter.

TTS for help triggers: No good way to do this except with voice acting, and unless you want to pay someone for voice acting, this isn't going to happen.

I think he means it creates a physical clone of your marble which does the opposite of what yours does, i.e goes in the opposite direction. This could actually be interesting if you were able to see both marbles well.

Oh, my bad in reading that one. In regards to a doubler like that, it would certainly be possible to code, but making levels that use it correctly would be a royal pain.

Here's my ideas :
Invincible PowerUp - Bumpers, mines, nukes, duct fans and tornadoes won't affect you during 10 seconds.
Gem Magnetizer PowerUp - Allows the marble to generate a magnetic field that attracts normally-unaccessible gems towards the marble.
About the Marble Doubler, that would be too confusing to handle. How about the second marble will spawn on the Start Pad, and you can switch from marble to marble using Return, for example.
Bouncing Pill : makes the marble jumping non-stop. Also, if the spacebar is pressed, it makes the marble jump twice higher!

Teleport Delay Power Up

Power up that increases/decreases the delay of the teleport trigger while activated, [strike]or permanently changes the delay timer (absolute or relative change).[/strike]

I really like some of Ralph's ideas actually, especially the invincibility and the bouncing pill. Pokko's suggestion of a teleport delay seems interesting, but I don't really like it. Too complicated.

Here's a few I have:
Increase/decrease jump height for a certain amount of time, or permanently
Decrease your marble's size
Make you pass through mega marbles with no consequences for a set amount of time (maybe just add this to the anti recoil?)
Make hazards/powerups/specified interiors stick to your marble for a certain amount of time, or until you press a certain key
Be able to see the hitboxes of powerups/gems through walls for a certain amount of time
Slow down your clock for a certain amount of time
Powerups that are used as soon as you touch them
An inventory gravity modifier
Inverted super jump (basically gives you downward momentum)
Slow down/speed up all moving platforms and path nodes for a set amount of time
Make your marble speed up faster/slower
Give you more/less traction for a certain amount of time
Allow you to fly (hold space to go up, let go of space to go down)
Changes your gravity when you get near a wall (basically allowing you to climb up walls)
Allows you to go out of bounds without respawning you for a few seconds

inb4 they're all in pq

Some are already in mods:
Decrease your marble's size: Many mods have that, but few used it well
Inverted Super Jump: Anvil, in PQ
More/less traction: MBPU had something similar in a level.
Changes gravity near wall: Glue, Also in MBPU
Slow down all time: Kinda in MBPU, there's a stopwatch that stops all objects.

I did enjoy quite a few of the other ones you listed.
Inventory GM: Would be quite interesting to include in levels.
Time distortion powerup: That would be very fun to use in a level.
Physics-changing powerups: Also would be very interesting to use in a level, would be much more strategic in use than PhysMod triggers.

Oh, and a PowerUp that may be useful for some custom levels with colmeshes :
Sunglasses PowerUp : Unlike MBPU, it reveals all the colmeshes by removing a bit of their [strike]opacity[/strike] transparency, and this for 15 seconds.