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
The 0/1 and 0/2 upgrades add to the total giving the Spike-O-Pult 21 if you have it upgraded to 3/2 just like the add to the total of the 4/0 upgrade Juggernaut changing it from 100 to 103.
The extra 3 shots many not be noticeable especially if you are planning on immediately upgrading to the Juggernaut where the base popping power is 100 so it may make sense not to those upgrades and use the extra cash elsewhere.