I am from robot workshop and this lora model to create some fake PS1 games, It doesn't look great as pixel art does, but it's very fun to use it.
INFO: This model doesn't require a trigger word, but there is one to use for a slight change on the results, ps1 style, It works great with both so if you want a little. About size try to use smaller generation sizes, like 512x512 or 768x768 for the maximum resolution. If you want more realistic results(meaning more like the original games but with lower quality) use also this other pixel art model I made https://civitai.com/models/53252/rwpixelart .