
Title: protoSTG v1.3 by Thinkrs
Platform: PICO-8 (128×128) • Keyboard/Controller
Genre: Vertical shmup • 1-hit kills • Score attack
Overview:
protoSTG is a clean, readable vertical shooter inspired by Ikaruga’s clarity. Two shot modes (tap spread / hold focus), a 3-tier homing-missile gauge, precise grazing, a left-side chain timer, and a modular boss you can dismantle in style—plus a sneaky scoring secret if you overkill the core… 👀
Controls (default):
Button 1: Shot (tap = 5-way spread; hold = focused beam + slow move)
Button 2: Missile (fires based on gauge level; holds auto-fire at L1)
B1 + B2: Bomb / Freeze (depends on ship)
D-Pad / Arrows: Move (focus slows to ~45%)
Game flow: Title → Stage (waves) → Boss → Results → Menu.
Scoring: Enemy values + grazing (enemy/bullet) + chain multiplier (+20/30/50%) + boss part/core bonuses.
Ships:
Ship 1: Bomb clears all bullets + damages.
Ship 2: Freeze time (~1.5s), then brief “speed-up” recovery for enemies/bullets.
Quality of life: Readable bullets, subtle starfield parallax, transparent gauges when
overlapped, Settings (swap buttons, music/SFX), Records (last 5 per ship, session), Values
screen (point table).
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