Help!

I'm sorry, but I only did 1 level & it was very simple... But now I want to make a serious level and I want to use different things. The problem is, that I don't know what it even is! Can you help me? I hope you can...

Things on shift:
1. Flag A/B/C (What's the differnce?) (Function -  ???; How to use - ???)
2. Warp (Function - ???; How to use - ???)
3. Flag On (Function - Flag 0-9 - ???, Item X - means give item X, right?; How to use - Click, right?)
4. Flag Off (Function - Flag 0-9 - ???, Item X - means grab item X, right?; How to use - Click, right?)

Bank 0 (System):
1. Red Box with Eye and "Music" - Turns the music, right?
2. Orange Box with 4 ↑ ↓ → ← (I don't know the word for it) - ???

That's all!

Just read the manual. it all in there.

Other Thing: What colour should be the background for Tileset?

I assume you mean for making your own tileset? Pure transparency.

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