Operation Jeff

A simple arcade game for the ZX Spectrum Next

Updated on 19th September 2025, download the new version below.

Also available directly on the Next via GetIt; ID is 80d2bf and full source code is here

Use the mouse to point and shoot. The bolts you fire land and explode shortly after, and will dematerialise any nearby Jeff.

Shooting uses charge which slowly replenishes over time. The faster your fire rate the slower you charge.

You can trade fire rate for charge speed (and the reverse) by using the mouse wheel or the Z / X keys.

Do not let any Jeff reach the edge of the screen, or you will lose health and eventually the game will be over. Once a certain number of Jeff is eliminated for each zone, you move onto the next.

Shoot bonuses for various benefits:

• Red plus: Replenish health
• Green plus: Replenish charge
• Black plus: Bonus points
• Yellow diamond: Smart bomb
• Blue clock: Freeze the Jeff for 5 seconds
• Black and blue rectangle: Temporary shield from damage
• Purple umbrella-like-thingy: Pause drops for a moment
• Round yellow down arrow: Slow down the Jeff temporarily
• Orange concentric circles: Extended bomb range (for a limited number of shots)
• Circle with bolt in the middle: Supergun (fast rate, no charge cost, for a limited number of shots)

If a bolt explodes especially close enough to a Jeff you get an extra small bonus.

Press P to pause during the game, or Q to quit.