Dart monkey
0/0: 1 / 11
3/0: 18 / 28
3/1: 19 / 29
3/2: 21 / 31
4/0: 100 / 110
4/1: 101 / 111
4/2: 103 / 113
0/1: 2 / 12
0/2: 4 / 14
0/3: 4 x 3 = 12 / 14 x 3 = 42
Splodey Darts: +10 after dart pops.
Tack Shooter/Tack Awesomizer
0/0: 1 x 8 / 2 x 8 = 16
3/0: 1 x 16 / 2 x 16 = 32
4/0: 60 / 120 (A bug makes that 61 now)
0/3: 2 x 8 = 16 / 4 x 8 = 32
0/4: Infinity
Specialty/Tack Awesomizer
0/0: 2 x 8 = 16 / 3 x 8 = 24
3/0: 2 x 16 = 32 / 3 x 16 = 48
4/0: 61 / 122 (A bug makes that 62)
0/3: 3 x 8 = 24 / 6 x 8 = 48
Sniper Monkey/Rifle Range
0/0: 2 layers / 3 layers
1/0: 4 layers / 5 layers
2/0: 7 layers / 8 layers
3/0: 18 layers / 19 layers
Boomerang Thrower/Double Ranga
0/0: 3 / 3 x 2 = 6
1/0: 7 / 7 x 2 = 14
2/0: 12 / 12 x 2 = 24
3/0: 101 / 101 x 2 = 202
4/0: 10000 to orbiting glaives
Ninja Monkey
0/0: 2
2/0: 4
3/0: 4 x 2 = 8
4/0: 4 x 5 = 20
x/3: 30
Bomb Tower
0/0: 40
0/1: 50
2/0: 40 + 8 = 48
2/1: 50 + 8 = 58
3/0: 40 x 9 = 360
3/1: 50 x 9 = 450
0/3: 10 damage to blimps
0/4: 700 damage to blimps
Ice tower
0/0: 10000
0/3: 1 per shard
x/4: infinite
Glue Gunner
0/0: 1
x/2: 6
x/3: 12
x/4: infinite
Monkey Buccaneer
0/0: 5
0/1: 5 + 1 x 4 = 9
4/0: 5 x 8 + 5 x 2 for a plane = 50
0/3: 5 + 1 x 4 + 30 = 39
Monkey Ace
0/0: 15 x 8 = 120
2/0: 18 x 8 = 144
4/0: 18 + 40 = 58 for one
0/1: 40
0/3: 15 x 16 = 240
2/3: 18 x 16 = 288
0/4: infinite, 500 damage to blimps
Super Monkey
0/0: 1
1/0: 1 x 2
2/0: 3
3/0: 15 x 3 per frame
4/0: so big it's hard to find out
0/3: 3
1/3: 4
2/3: 5
0/4: 5
1/4: 6
2/4: 7
Ability: +250000
Monkey Apprentice
0/0: 2
1/0: 7
2/0: 7, 25
3/0: 7, 25, 20
4/0: 7, 25, 70
0/1: 40
0/3: 4 per frame
0/4: 2 per frame
Homing: 7
Tiny tornadoes: don't know, don't have this premium.
Village
4/0: 1 per frame, 2 layers per frame
0/1: grants +1 to all towers except sniper
0/4: doubles popping power for all towers except sniper
Mortar
0/0: 40
4/0: 100
ability: infinite
Dartling
0/0: 1
3/0: 13
4/0: 100
0/1: 3
3/1: 15
0/3: 40
0/4: 40 x 3 = 120
Ability: 500 x 40 = 2000
Spike Factory/Tack Awesomizer
0/0: 5 / 10
1/0: 10 / 20
3/0: 16 / 32
4/0: 16 + 20 / 32 + 40
0/3: 15 damage to MOABs
1/3: 30 damage to MOABs
0/4: 1000 / 2000
1/4: 2000 / 4000
Monkey Engineer
0/0: 3
Sentry: 2
3/0: need further tests
4/0: 250
0/1: 8
Bloonchipper
0/0: 250 RBE
4/0: 600 damage to blimps
0/3: 750 RBE
Levels are shown as left path/right path. In a number / number, the first number is the base number and the second number is with the appropriate premium or specialty building. For example, Tack Awesomizer doubles the pierce for Tack Shooters and doubles the spiking of Spike Factories.
Best Answer
Each projectile can hit up to four bloons (the Sharp Shurikens tier two upgrade), reducing each by one layer. So a 2/* can reduce four bloon layers total across four bloons. If it hits just one bloon, it can only reduce one layer. Same thing for two or three bloons is two and three layers respectively.
A 3/* (Double Shot) can reduce up to eight bloon layers across four to eight bloons. I.e. each projectile can hit up to four bloons and a given projectile can only reduce a bloon by one layer. Since there are two projectiles, together they can reduce a bloon by two layers if both hit.
A 4/* (Bloonjitsu) can reduce up to twenty bloon layers across four to twenty bloons. Again each projectile can hit up to four bloons and only reduce a bloon by one layer. This time, there are five projectiles which can reduce a single bloon by five layers if all five hit the same bloon.
They have much the same impact as an increase in popping power if they hit the same bloon. Or the same impact as pierce if they hit different bloons. But they work by increasing the number of projectiles rather than increasing popping power or pierce.