PvZ plants
PvZ zombies
Bloons TD6
Math (meth)
Guess the media by a screenshot (2x points IF)
100

The first plant you unlock in the game

Peashooter

100

First special type zombie you encounter

Pole-vaulting zombie

100

Fastest bloon in the game

Pink bloon

100

2+2

4

100

1

Ultrakill

150

The most expensive plant in the game

Cob cannon

150

Zombie that gets counters by lobbing type plants but not fume shroom

Snorkel zombie

150

Fastest attacking tower in the game

Elite defender 0-0-5 sniper

150

simplify (sqrt(15)*sqrt(3))/(3*sqrt(5))

1

150

2

Hellmet

200

The third plant you unlock in the game

CherryBomb

200

Strongest instakillable zombie across all pvz1 versions

Football zombie

200

Only paragon who can instakill a BAD

Navarch of the seas 5-5-5 bacuneer

200

Fastest expanding exponential Function? (considered a biggest number or smt like that i'm not really sure) 

Tree(n)

200

3

Jojo

250
The only other plant that can pop baloon zombies besides cactus

Cattail

250

in how many tiles a basic zombie dies from a peashooter

Three

250

Monkey can you unlock by using mortar monkey

Cave monkey

250

Eulers numer (to 5th number after decimal point)

2.71828...

250

4

Queen

300

Plant that can cause a secret zombie death

Wallnut

300

Job that the buckethead zombie was supposed to look like

Painter

300

First monkey to be added after release 

Mortar monkey

300

a 3D shape with 20 faces

icosahedron

300

5

Penguin0