How about, a bloon fuser tower, that fuses bloons to make them easier to pop.
For fused bloons, it adds up the average HP for the two bloons and sets that to the HP value.
Say, a Red + a Yellow. that would be the Orange Bloon, with 2.5 HP.
It CAN fuse diffirent types of bloons, but not for 0-0-0. it can fuse only up to Purples.
1st Path:
{Camo Bloons} It can now fuse Camo bloons, and if its fused with a non-camo it de-camos it.
{Ceramics} It can now fuse up to Ceramics both normal and camo.
{Moabs} It can now fuse MOABS. fusing these with bloons not MOAB-Class make Mini-Boss variants.
{ZOMGs} It can fuse up to ZOMGs now. this also allows it to fuse fortified and regrow bloons.
{All Bloons} it can fuse up to BADs.
2nd Path:
{Tri-Fusion} It can now fuse 3 Bloons at once.
{Quad-Fusion} It can now fuse 4 Bloons at once.
{Multi-Fusion} Can do multiple (up to 3) fusions at once now. can fuse Camo, Fortified, and Regrow.
{Extra-Multi} Can do up to 12 fusions at once now. [Ability: Fuses all bloons on screen for 20 seconds, before they all split again]
{Bloon Insanity} Can do unlimited fusions at once, and can fuse MOABs. [Ability: Fuses all bloons on screen for 60 seconds, before they all split again. It also moves to any avalible location.]
If your wondering where the 3rd path is, it doesnt have one. it does have a paragon.
PARAGON: Chaos Awaken
Can fuse any amount of bloons, any time, and can also do unlimited fusions.
Hope you like my tower concept.
EDIT: im making a page with EVERY SINGLE LAST bloon combination. im gonna need some help, so ill make the page and tag it below.
Guess i cant