I'm working on a game with mechanics akin to the PunchOut series. For technical reasons I chose to use a 3D first-person perspective. However, as I playtest and move and dance around in the game, I start to get disoriented and nauseous, which NEVER happens to me. So I figured I'd better start looking into this simulation sickness phenomenon and how I can design my game to reduce its impact. However, a lot of sources for research have mixed or vague recommendations. Example: some sources say a wider FOV helps with the sickness, while other sources recommend a more narrowed and focused FOV. One source says that to avoid a lot of movement acceleration (constant speeds), while others say to make it as fluid and life-like a possible. So I'm at a crossroads here. Whatever overhauls I make to my game to accommodate this, I worry about them actually making it worse.