-Multiplier starts at x1 then goes up to x2, x3, x4 with points gained.

-Once you're at x4, a special glowing enemy can spawn in, which takes 2 hits and will grant you 15 seconds of x10 multiplier if you kill it.

-Multiplier falls back to x1 if you take too long between kills and lose your killstreak. This timer is unaffected by Flux.

-Multiplier is unaffected by taking damage.

-Point values for multiplier levels:

20 points for x1 to x2
~262 points for x2 to x3 (282 total since combo start)
~447 points for x3 to x4 (729 since combo start)

(These are multiplied by your current multiplier when you kill one)

spiders +1
basic flyers +2
white (electric?) flyers +4
lava flyers
flyer spawners +8
floor roll wheels +10
laser eyes +10
shield flies +2
teleporters +12
green orbs +1
floating jellyfish
frogs
horses +20
small razor discs +8
giant razor disc
shield moths (the ones behind giant moths) +0 ? (weird idk why these are different from shield flies)
giant moths
dragons? (3 weak points breath blue fire)
eels? (the ones that group up and make explosions)
ground fish