Games like Mega Kaiju Boom Ball
Games like Mega Kaiju Boom Ball include UFO 50, Broforce, Hotline Miami, Hotline Miami 2: Wrong Number, and Warhammer 40,000: Boltgun. We matched them by the tags players give Mega Kaiju Boom Ball on Steam (Retro, Action, 1980s, Pixel Graphics, and Arcade): closest matches first, and among equally close ones the better-known games.

UFO 50
Shared: Retro · Action · Pixel Graphics

Broforce
Shared: Action · Pixel Graphics · Co-op

Hotline Miami
Shared: Action · Pixel Graphics · 1980s

Hotline Miami 2: Wrong Number
Shared: Pixel Graphics · Action · Retro

Warhammer 40,000: Boltgun
Shared: Retro · Pixel Graphics · Action

METAL SLUG
Shared: Action · Arcade · Retro

Shovel Knight: Treasure Trove
Shared: Retro · Pixel Graphics · Action

METAL SLUG X
Shared: Action · Arcade · Retro

Kung Fury: Street Rage - Ultimate Edition
Shared: Action · Retro · Arcade

METAL SLUG 3
Shared: Action · Arcade · Retro

Sonic Mania
Shared: Retro · Pixel Graphics · 2D

Planes, Bullets and Vodka
Shared: Action · Retro · Arcade

PAC-MAN 256
Shared: Action · Retro · Arcade

Door Kickers: Action Squad
Shared: Retro · Pixel Graphics · Action

DOOM + DOOM II
Shared: Action · Retro · Old School

Huntdown
Shared: Pixel Graphics · Action · Retro

PAC-MAN™ Championship Edition DX+
Shared: Retro · Action · Arcade

Duck Game
Shared: Action · Pixel Graphics · Local Multiplayer

ARCADE GAME SERIES: PAC-MAN
Shared: Action · Retro · Arcade

Streets of Rage 4
Shared: Action · Arcade · 2D

Double Dragon: Neon
Shared: 1980s · Action · Retro

Vampire Survivors
Shared: Pixel Graphics · 2D · Action

Razortron 2000
Shared: Retro · 1980s · Arcade

MARVEL Cosmic Invasion
Shared: Pixel Graphics · Arcade · Retro