Gun Master Game

Gun Master is a side-view 2D shooter developed by BPTop, built around the same lineup-style aiming as Ketchapp's Mr. Gun. Rows of mobsters line up across the screen, and a single well-placed shot drops each one before the next steps into position.

Every level ends with a boss fight against one of the game's mobster bosses, several of which go for cartoonish looks and joke names rather than a straight action tone. Cash earned from beating enemies and bosses goes toward new guns and upgrades at the in-game Gun Store, and clearing enough levels unlocks new outfit sets for your character.

Controls

Left mouse button (or a tap on touchscreens) to fire. There's no movement key or aiming stick — the whole game runs on well-timed clicks.

Tips

• Put early cash into a new gun or upgrade at the Gun Store before spending on outfits — outfits are cosmetic and unlock automatically as you clear levels.
• Keep firing through the regular enemies before the boss appears; missed shots let the line build up and slow your run.
• Unlocking five guns and reaching level 100 are both outfit-unlock milestones, so steady progress pays off in wardrobe options too.

Its short per-level structure and single-button controls make it an easy pick for a few quick rounds on desktop or mobile.