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Some tasks with boosters are for (in-level) boosters you gotta use from your inventory - UFO, Party Booster, Lollipop, Switch.
On the other hand, there are tasks with Colour Bomb, Striped, Wrapped and Fish - these can be completed without activating your own (pre-)level boosters.
Have funsies! 😝
Well the chocolate box only has 4 options in the first line. Use already owned ufo. I do not have any nor will I buy any. Use a magic wand. Again, don't have not gonna buy. Win level on first try. Win UFO's. I have been stuck in this level over a week. The only way to accomplish either of those requires advancing. The chocolate box discriminates by not providing 1 completable task without having to make a monetary purchase.
You get a full set of regular boosters from opening one Sweet Cinema board.
Anyhow, unless you're stuck at some level for days, there's always a way to complete all tasks. Yes, you do need new levels or special boosters (for the 3rd box) but it's not meant to be done only by repeating older levels.
You get a UFO from the Daily Win (in 6 days), so you're not forced to buy those. It's no use if you're stuck though. Generally speaking, it's not worth using boosters for Choco Box unless you already had some and their value is lower than that of the "reward".