Razing Core

Razing Core is a vertically scrolling shoot 'em up for the SEGA Master System and Mark III console.

On a routine deep-space mission the Horizon encounters an unknown object, the Core. Without warning it pulls the Horizon into its slipstream at light speed and heads for Earth.

You are about to drop out of hyperspace into a war zone.

With the Horizon's firepower and the Core's unexpected aid at your disposal, you must destroy the invading alien armada to save humanity.

Features:

• 7 stages across the solar system
• Upgradable primary, secondary and Core weapons
• Burst Charge weapon with 5 charge levels
• Screen-filling bosses and multiple mid bosses
• Boss checkpoints and infinite continues
• Printable manual with illustrated cover
• Stage 1 demo available

Controls:

• Master System/Mark III Controller:

• D-Pad: Move
• Button 1+2: Bomb
• Button 1: Shoot
• Button 2: Melee

• Mega Drive/Genesis Controller:

• D-Pad: Move
• Button A: Bomb
• Button B: Shoot
• Button C: Melee
• Start Button: Pause

A physical release is planned for 2027.

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Developed by Bad Computer - X / Bluesky

Music by Lovepenguin - Bandcamp

Illustrations by Danmakuman - Linktree

© 2026 Bad Computer

This is distributed as a Sega Master System ROM; you will need a Sega Master System/Mark III emulator (such as Emulicious or Mesen), FPGA device, or real hardware to run it. If you're using a MiSTer then you may have to disable the BIOS to run it.

The game is designed to be played at 60hz.