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KO Inventor

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A member registered 3 days ago · View creator page →

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Quick update: I’ve now uploaded a new build based on both parts of your feedback. 

  • The late stretch of round one and its boss have been softened, giving new players more time to learn the attack patterns before the difficulty increases. 
  • Special-shot frequency now also rises as more weapons are earned through a four-tier power system, so collecting weapons produces a noticeable increase in firepower. 
  • Losing a ship lowers one tier, while defeating a boss or rescuing the UFO captive restores power. 

Thanks again—your suggestions directly shaped this update. If you try it, I’d love to know whether the tier loss feels fair.

Thank you so much for coming back to play the update and for taking the time to give me such detailed feedback. I’m really glad to hear that all four issues are now fixed on your end. Your thoughts on the difficulty curve in round one and the way the weapons currently stack are extremely helpful, and your explanations made the problems very easy to understand. I’ll use your advice as I continue improving and balancing the game. Thank you again for giving the update such a careful look!

Thanks for letting me know! I’ve updated the post and added gameplay images and a trailer. Sorry about that!

(3 edits)

Thank you again for the detailed feedback. I’ve now uploaded the updated build and published the v1.0.1 devlog.
I’ve addressed all four points you mentioned. 

  • The game now attempts to grab keyboard focus when it loads and whenever the canvas is clicked, and the title screen now says “CLICK HERE OR PUSH ENTER” so players know they may need to click first. 
  • The pause screen can now be resumed by clicking as well as pressing P, the overlapping pause and round messages have been fixed.
  • The controls below the game are now shown in English first with Japanese underneath. 
  • The title screen also lists A/D and Z. 

Thank you as well for the kind words about the score table and sprites. The score table was actually the first part of the game I built, so I was especially happy to hear that. 

If you have time to try the updated version, I’d still really appreciate your thoughts on the first-round difficulty and how the weapons feel once they begin stacking. No pressure, and thank you again for taking the time to give such useful feedback.

Thank you so much for taking the time to play and leave such thoughtful feedback. I’m sorry the focus and pause issues stopped you from getting far enough to properly try the game, but your explanation was incredibly helpful. I’ll work on making the game easier to start, fixing the pause screen and overlapping text, and adding clear English instructions for all the controls. Your point that some players may assume the game is broken and leave is especially important, so I’ll make these improvements a priority.

I’m also really glad you liked the title screen, enemy score table, formation, and sprite work. That was very encouraging to hear. I’ll let you know here once I’ve updated the game, and I’d be very grateful if you feel like trying it again. Thank you again!

Thank you so much for playing and for the kind words! I’m really glad it reminded you of Galaga, and I’m happy you enjoyed the progressive gameplay. Your feedback means a lot to me!

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UPDATE — July 27: Based on the feedback I received here, I’ve uploaded a new build. The late stretch of round one and its boss are now gentler, giving new players more time to learn the attack patterns. Special-shot frequency also increases as more weapons are earned through a new four-tier power system. Both the browser version and downloadable ZIP have been updated. I’d especially appreciate feedback on whether losing one power tier after losing a ship feels fair.

Hi everyone!

I recently released Space Ranger, a free browser-based arcade shooter inspired by classic 80s games.

You fight through enemy formations, rescue captives from UFOs, unlock four special weapons, and face boss battles across 13 rounds. The game supports keyboard and touch controls, so it can also be played on mobile devices.

Play Space Ranger here: https://ko-inventor.itch.io/space-ranger

Gameplay trailer:

I would especially appreciate feedback on:

  • Are the controls easy to understand?
  • Is the first round too easy or too difficult?
  • Are the enemy attacks and bullets easy to see?
  • Are the boss battles enjoyable?
  • Which special weapon is the most fun?
  • Does the game work comfortably on your phone or tablet?
  • Did anything feel confusing or unfair?

Even a short comment would be very helpful. Please feel free to share your score and the round you reached!

Thank you for playing!

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Latest Update — Space Ranger v1.0.2 is now live!
Based on player feedback, the late stretch of round one and its boss have been made gentler, giving new players more time to learn the attack patterns. Special-shot frequency now increases as more weapons are earned through a new four-tier power system. This update also includes weapon, boss-damage, reward-message, and later-round balance fixes.
Both the browser version and downloadable offline version have been updated.
Play Space Ranger: https://ko-inventor.itch.io/space-ranger

Hi everyone! I’ve released Space Ranger, a free 80s-style arcade shooter playable directly in your browser.

Fight through enemy formations, rescue captives from UFOs, unlock four special weapons, and face the final boss across 13 rounds.

  • Free and playable in browser
  • Keyboard and mobile controls
  • Four unlockable weapons
  • Boss battles and bonus missions
  • Downloadable offline version available

Play here: https://ko-inventor.itch.io/space-ranger

Here’s a short gameplay trailer showing Space Ranger in action, including the enemy formations, power-ups, and increasingly challenging waves: 

Here are a few screenshots from the game: 






Space Ranger is free and playable directly in your browser. I’d love to hear what you think!

Feedback is very welcome. Thanks for playing!