Hi Amnon
Thanks for your help so far. Hope I've found the first of the two glitches: I can invite a 'special guest' to th top right area now. I can also do a few funny things with my new friend (lock him in for example).
But I've no idea about the second trick.
1. Take top coin - but not the bottom one!
2.. Jump up and invite the ghost to the right-side area.
3. Roll the boulder on top of the ghost as it passes up-down (or down-up)
4. Jump in to retrieve the boulder - careful of the ghost and follow the boulder quickly into the teleporter.
5. Retrieve the ice-block (also enter the TP closely following it).
6. Barrel up, place ice-block 2-down/1-right of the mushroom, kick ball right and up, ice to the right, then jump and bring it 2-down/1-left of the barrel, boulder Left then Up, blowing the barrel.
7. Exit.
Wow I just did it. Thanks for the walkthrough Amnon! I was stumped and never would have figured out the glitches otherwise... Great little level for sure!
Billy Bob - this is an amazingly clever level.
I don't know how you thought it out.
Without Amnon's walkthrough I'd never have made it, so thanks for that.