ULTRA0

A shooter built to carry a story, not the other way around

ULTRA0 pairs on-rails shooting with a sci-fi yuri visual novel, structuring its five main story chapters around gameplay segments tied to individual characters. Reviewers were quick to note that the gameplay, while functional and enjoyable, is clearly secondary to the narrative it's wrapped around. One wrote plainly, "I got Ultra0 on a whim since it was on sale and ended up enjoying it, although the story is quite grim... This is foremost a storytelling game, the gameplay is secondary." Another framed the same balance more directly: "started & finished this in 1 day & it might be one of my favorite games now. while the gameplay itself is nothing groundbreaking, it's still really fun & easy to get into, even for casuals. the story is the real star here."

A story that keeps surprising

The single most consistent point of praise across the review pool is the narrative's ability to defy expectations. One reviewer wrote, "The story has some very nice twists I didn't see coming and the gameplay is simple and snappy. I didn't find it frustrating at all, even if I had to repeat some of the boss fights," specifically flagging the end of Chapter 4 as "fairly heartwrenching." Another reviewer, initially skeptical of a "small and simple indie game," described being "more than shocked to see how much mileage they got out of such a simple gameplay to tell a really exciting and engaging story." A third reviewer summed up the surprise factor concisely: "the story went in a direction I didn't expect, which made for an interesting second half."

Retro presentation that lands

Visuals and sound draw consistent, specific praise throughout the pool. One reviewer described the game as feeling like "Space Harrier with yuri," before revising that comparison: "it's actually After Burner with yuri (even better), and... it's just as much of a narrative focused game where the story is surprisingly legit and went some places I didn't at all expect." Another reviewer credited small production touches for elevating the experience beyond its budget: "I specifically noticed the QOL on fail-state on a certain boss, little touches like that? They separate the real guys from the fakes. This game is a visual novel with modern-recreated-retro-style graphics." A shorter review distilled the appeal bluntly: "Anime as [expletive]/10. Loved the visuals and soundtrack."

Gameplay that never quite deepens

The most substantial criticism in the pool concerns how underdeveloped the shooting mechanics remain relative to the game's runtime. One detailed reviewer wrote, "This game had so much potential. the beginning of the game set up some cool ideas, but it kinda just left them... The gameplay is pretty fun, but lacks ANY depth what soever. there's a 'shop' where you can upgrade between some missions... but theres no connection to the story. its never explained. it seems like the shop was meant to have way more to do in it... but they either ran out of time, or forgot about it." The same reviewer flagged the difficulty as a related problem: "The gameplay is super easy. the only reason I died is to see what would happen when I did.... a game like this should be WAY way harder." Another reviewer's TL;DR captured the same tension while still landing on a recommendation: "if you can get it for like $5, like on-rail shooters and VNs, go for it. the visuals are great. but if you're expecting any sort of depth (gameplay or story-wise)... this may not be for you."

Rough edges for anyone wanting to replay

A separate cluster of complaints concerns quality-of-life gaps that specifically hurt replayability. One detailed review listed three concrete issues: "if you want to replay any chapter, you can't skip any cutscene," "there is no way to select which part of a chapter to start from after completing it," and "once you start a chapter, there is no way to go back to the chapter selection screen." That same reviewer still recommended the game overall, closing with, "I had a good time with it, I just wish it had some extra QoL that made repeated playthroughs smoother." For a game many reviewers describe finishing in a single sitting, that lack of easy re-entry into favorite chapters or gameplay segments is a real, if minor, missed opportunity.

A short runtime that mostly lands as a feature

Length came up repeatedly, and reviewers were split on whether the brevity was a strength or a shortcoming. Several treated it as a deliberate, well-executed choice: "Short and sweet game, I completed it in one 3-hours-long sitting," while another put total playtime including a completionist pass at "about 5hrs of content if you're looking to 100%." The pool's lone negative review took a much harsher, more general view, dismissing the game in three lines as "Tropey, and specifically relies on the trashy tropes of the genre. Lacks substance. Perverse," though it offered no specific examples to substantiate the claim, standing out as an outlier against an otherwise detailed and consistently positive pool.

Verdict

ULTRA0 is a short, story-forward package that succeeds primarily on the strength of its narrative twists and striking retro-futuristic presentation, with reviewers consistently surprised by how much emotional weight it packs into a handful of hours. Its on-rails shooting is approachable and pleasant but never develops real depth, its upgrade system feels disconnected from the story it's meant to support, and its lack of chapter-segment select or cutscene-skip options makes revisiting favorite moments more of a chore than it should be. Recommended for players drawn in primarily by the story and visuals rather than those seeking a challenging or mechanically deep shooter.