Game Hopping Dizzy (HELP THREAD)

I found orange key!
Now I have all 4 keys, but where to use them?

I have 270 gems
I have blue key, purple key, green key, orange key, crowbar(used), zippo lighter(used), pickaxe(used), spade(used), golden dragon egg, whip(used), magic stone(used), cannon ball, spanish doubloon, diamond ring

I need to get 10 gems in one of the Dizzy's hut, it's where Justin Bieber mask was
I need additinal 20 gems, where I can find it?

Where to use all 4 keys?

I'm again running round in circles!

What can I do now? Where to go?

Thanks, Quiggie!
I have found this area, I was in the rooms with maps earlier, but didn't check left wall

hi comrades - I find myself stuck )= I have the following items: axe, cymbals, whip, spade, walkman, sewing kit, 2 candles, lighter... and I have no idea what to do next o_O_o I need a starplant, some way to reach the treasures in the castle, a sharp object to unfurl the sails, a burger, a present for the troll, a gun, something Irish, a pickaxe or dynamite, something to make the old dude look young, perhaps an aqualung, some way to cross the stagnant water, and who knows what else

I'd forgotten how big this game was. Let's see if I can give you a few hints Rog'er. You need the Sword of Justice to hack the knots to unfurl the sails and you get that from the castle in the Crystal Kingdom part of the game. One of the furled sails has a burger in it, which is released when you chop the knots.

You use the salt (from the Fantastic Dizzy part of the game) to raise the stagnant water, which you can only reach by using an item you have on the bridge ...you can also get the doorknob for the treasure room in the Fantasy World part. But, you have to be able to breathe in water first ...and that's not with an aqualung, but a magic potion might come in handy :lol:  

rule 1: All Trolls are scared of Pogie the Fluffle.

thanks a lot Grandad (= the potion was the clue I really needed - I'd foolishly assumed it did nothing! I progressed quite a bit further, so now I have: pickaxe, Spanish doubloon, spade, crow bar, Sony walkman, Blue Peter flag, wooden chalice, whip, zippo lighter, cymbals, blue key... what can I do next? I'd really like to find the star plant for Grand Dizzy's medicine

also, I encountered a non-harmful bug: if you have the bra and try to pick up the knickers while your pockets are full, you get the set of undies without actually picking up the knickers, so you can then pick up both - here's a screenshot, which I'm sure will be of enormous interest to anyone wanting to maximise their collection of their sister's stolen underwear

Have you checked for secret exits from all ceilings in the yolkfolk huts as one leads you to an area with a mask of a young pop singer, which you can swap with someone for a lovely star plant {eggs2}:banana:  

[spoiler title="spoiler"]It's the Dizzy hut near the monolith[/spoiler]

Not sure why the underwear collection is acting up, but as you say, it doesn't make the game fall over.