Shroom trampoline achievement

[Bummer6]

Not sure if I just suck of if this achievement is unfair. One thing I'm sure of is that it's poorly explained and not exactly fun. The achievement description is:
"Combo a mushroom bounce for 2 minutes without landing"
My problem is that you sorta NEED to land in order to jump again unless there is some way to bounce automatically that I don't know of.
Also, why 2 minutes? If you manage to "bounce" (still not sure how the game decides if you chained it correctly or not) 10 times in a row without fail, it pretty much means that you've mastered it, so forcing the player to keep going for 2 minutes seems a bit... Overkill.
And lastly, the fact that sometimes you don't bounce even if you're standing on a mushroom and jump. It seems completely random. Sometime you just don't bounce and instead do a normal jump.
Some clarification would be nice.

[Chick]

Try using the mouse + keyboard controls. With a gamepad, it throws me in a direction that I cannot recover from, this doesn't happen with a keyboard.

[Bummer6]

Still doesn't explain how long I can be on the ground before it "breaks the chain" so to speak.

[Tito]

Originally posted by Bummer6:

Still doesn't explain how long I can be on the ground before it "breaks the chain" so to speak.

I would say you CAN'T stand to keep chain going, all jumps should be well timed. I've been trying this one for quite a while, and that seems the case.

[Psymon²]

I've decided to add this to thread rather than start my own, as I was a bit unsure of the requirements. The "without landing" is contradictory, as you have to "land" on the mushroom to jump off again...

I got this "acheivement" by using only one mushroom and jumping on it for 2 minutes.
Don't use the jetpack, it breaks the timer.
Make sure every jump causes the mushroom to make that creaking sound.

I almost didn't bother, because I'm not that much of an achievement hunter, but 2 minutes is nothing, really. I'll agree I'd prefer it requested a number of simultanious jumps, rather than jumping for a length of time.

[IntMint]

You can just get on a shroom, grab it with both hands and spam jump while keeping your grip.

[Draco]

If you have it, use the ninja costume, you can bounce higher, meaning you have to do it less.