Starland TD Final Round - Fungame Casting

Yes you heard right, this is a Fungame Casting.
As a special Challenge i want to split the final round in several modes.
One shall be a fungame mode.

Fungame?

Those specialrules like max 5 Towers and so on.

And what am I casting now?

Well, post your Ideas of fungames, and please Ideas that are new. And if possible untested. It will be a special challenge for the final round. Cause these modes are quick and will have no known perfect setup.

So post your Ideas.

2 towers per boss 2 towers more

1) only debris
2) only laser
3) only missile, aa and frost
4) end of maze in middle of map

5) you get to build each round maximum 3 towers OR 3 upgrades. The towers have to be the same, the upgrades don't.

10 Extras allowed, but 1 Extra has to be send everytime, yes also 1 Extra Boss.

10 Extras allowed, but 1 Extra has to be send everytime, yes also 1 Extra Boss.

1) target score (get as close to the target score as possible. closest player wins!)

2) 2 path mazes only

3) no touching towers*

4) only shockwave debris and frost

5) 5 corner mazes (mazes cannot have more than 5 corners in them at the same time.)

• indicates extra hard

sorry i meant to say * but it turned out a green circle.