Staple Gunner

The Staple Gunner is a new tower in Thermoxin's Bloons Tower Defense 7. It fires staples that stick bloons to the track and pop one layer of bloon each. Each staple has three pierce. Staples can not pierce through MOAB-class bloons, so while the staples do deal damage, they do not stick them to the ground. To make up for this, each staple can hit MOAB-class bloons three times. Staples stick bloons to the track for five seconds. It costs $300 on Medium.

Upgrades
1/x/x - [Bigger Staples] Staples can now pop five bloons before sticking to the ground. ($200)

2/x/x - [Sharper Staples] Sharper staples can pop two layers of up to seven bloons before sticking them to the ground. ($500)

3/x/x - [Super Staples] Bigger, more powerful staples can pop up three layers of up to fifteen bloons before sticking them to the ground. Staples can even stick one MOAB each to the ground. ($2,500)

4/x/x - []  ($)

5/x/x - [Giant Freaking Staples] Ginormous staples can even staple ZOMGs to the track! ($)

x/1/x - [Faster Firing]  ($)

x/2/x - [Automatic Firing]  ($)

x/3/x - []  ($)

x/4/x - []  ($)

x/5/x - []  ($)

x/x/1 - [Hot Staples] Hot staples can pop frozen and lead bloons. ($)

x/x/2 - [Better Vision] The Staple Gunner can now see and pop camo bloons. ($)

x/x/3 - []  ($)

x/x/4 - []  ($)

x/x/5 - []  ($)

Trivia

 * A 3/0/2 can also stick DDTs to the ground.
 * This conception is unfinished, as I don't have many upgrade ideas.