Ninja Seeker is a fast-paced retro action game built by a solo developer. The concept is simple: every paper door might hide a ninja invader. You're the last guardian of Shadow Castle. 30 seconds per stage. Find them all — or the castle falls. WHAT MAKES IT DEEP: → 111 stages across a 4-tier castle map → 5 masters, each with unique mechanics and 3 difficulty tiers → 7 ninjutsu to master (Bomb, Fire, Poison, Water, Ice, Wind, Thunder) The ending is earned, not given.