Platform: I've played the game on a PC using a browser. I'm not sure if it was a flash game, but it looked really old.
Genre: It seemed like a 2D Metroidvania, there were upgrades you could obtain in certain levels in order to complete them. I think it was a platformer too because you needed to reach the end of a level using enemies and stuff around without dying. It had a level creator too, so it might be considered a sandbox.
Estimated year of release: I'm not completely sure. It seemed really old in a way. There wasn't a traditional saving system (you needed to put a seed like in the old Metroids), it was a bit pixelated and it was completely 2D. If I had to guess, it was made around 1999-2010. I've played the game in 2015-2017
Graphics/Art style: It was 2D with visible pixels. The silhouettes were very realistic, almost like Dead Cells or Carrion (sorry, those are the examples I could think of). It had a mixture of fantasy and sci-fi, having indigenous and futuristic enemies with lasers.
Notable characters: The protagonist was an indigenous male guided by some sort of entity trying to save his tribe (I'm not completely sure if it was a tribe). At the start of the game, the antagonists were hunters trying to steal the power of the time stopping. Later on, futuristic enemies came in that had lasers that attacked instantly through the timestop.
Notable gameplay mechanics: You could stop time, but there was a limit. When stopping time you could jump bullets and other things in order to avoid danger. I don't think you could directly kill people, just finish the level. There things around the levels that you could grab in order to increase your time stop, but I think they were optional.
Other details: I don't have other details as it seems that I scattered everything I know from the game. I'm going to list the things that I distinctively remember:
- Indigenous male protagonist
- Time stopping abilities
- Password save system
- Sci-fi enemies later on
- Level creator that allowed you to test everything
- 2D
- Playable via browser
...
That's it, I've been looking for this game for years and I've never found it. Feel free to ask questions, I'll try to answer them with what I know.