"The trolley problem is not a problem": rail-shooter game made by Opus 5.5 (X video, Japanese)
soyukke (@soyukke_game) · 2026-09-23 · ai-made · 709,722 views
Made by AI
Model: Claude Opus 5.5 · Series: Agent-built game or 3D world (the video shows the result)
Evidence: X post (2026-09-23): 'opus 5.5に「トロッコ問題は問題じゃない」っていうゲーム作らせてみた #gamedev'
Human role: Creator asked Opus 5.5 to make the game; iteration not described.
Pipeline: Opus 5.5 → browser game → 28-second capture
What's in the video
Description written by Gemini, which watched and listened to the whole video.
Summary This video presents gameplay footage of a 3D rail-action comedy game titled "The trolley problem is not a problem" created by soyukke (@soyukke_game), reportedly coded with Claude Opus 5.5. The game turns the classic philosophical trolley problem into an incremental arcade game where running over targets unlocks upgrades, multi-track drifting, and boss encounters.
What is shown
- [00:00 - 00:06]: The classic trolley dilemma prompt: "1人か、5人か。" ("1 person or 5 people?"). The trolley steers into the track with five figures, achieving a "5 COMBO" and "FINISH!!".
- [00:07 - 00:10]: An escalated dilemma showing "38体 vs 34体" (38 vs 34 targets). The player queues up skills from the bottom toolbar: bomb detonation ("起爆準備！") and multi-track drifting ("複線ドリフト 準備").
- [00:11 - 00:16]: The trolley splits across both tracks simultaneously in a multi-track drift, annihilating all 72 targets across both rails, triggering explosions, defeating an intermediate dragon ("ドラゴン撃破!!"), and culminating in a 72-hit "OVERKILL!!".
- [00:17 - 00:27]: A boss fight against "BOSS 王竜 バハムート" (King Dragon Bahamut, HP 1,200/1,200). The player activates "火力x1.5" (Firepower x1.5), charges forward ("突撃!!"), and pierces through ("貫通!!") with an extended train of cars, defeating the boss ("BOSS 撃破!!") with a 36-hit combo.
Claims & numbers
- HUD stats: Train HP starts at 100/100, drops to 90/100, then is upgraded/healed to 120/120 by [00:26].
- Gold earnings: Player currency increases from 0 G at [00:00] to 4,324 G at [00:16], reaching 7,924 G after defeating the boss at [00:27].
- Boss stats: King Dragon Bahamut has 1,200 / 1,200 HP.
Notable quotes
- [00:01]: "1人か、5人か。" ("1 person or 5 people.")
- [00:08]: "38体 vs 34体" ("38 vs 34")
- [00:10]: "複線ドリフト 準備" ("Multi-track drift preparation")
Assessment This is a genuine gameplay screen capture of an indie game prototype created using an LLM coding workflow. The mechanics and physics operate directly in real-time without CGI prerendering, demonstrating functional camera scripting, procedural collision, UI menus, and combo mechanics.
Lyrics & themes
- The audio is entirely instrumental, consisting of arcade sound effects, trolley wheels, horn signals, impacts, and retro explosion chimes.
- The thematic core satirizes ethical trolley problems by adopting an absurd "utilitarian maximalist" mechanic: instead of choosing between tracks to minimize casualties, the player unlocks abilities to destroy both tracks for maximum gold and combo points.
Lore & references
- The Trolley Problem: References Philippa Foot's classic thought experiment, progressively turning it into absurd high-body-count scenarios.
- Multi-Track Drifting (複線ドリフト): A classic Japanese internet meme originating from the parody manga Densha de D (a doujinshi mashup of Initial D and train operation), where a train drifts across two parallel sets of rails.
- Bahamut: A ubiquitous dragon king fantasy boss trope, referencing classic JRPG boss encounters.
Visual style & craft
- Rendered in a clean, minimalist low-poly 3D style using a flat green ground plane, blocky figures, and simple textured train models (likely built in Three.js or Unity).
- Text banners, floating damage numbers, combo multipliers, and an arcade-style bottom hotbar reflect code-generated procedural UI overlay typical of autonomous LLM game prototyping.
Described by gemini-3.8-flash on 2026-10-05 from the video's audio and frames.