Could a game like Undertale be made with JavaScript as a web game? If yes, would there be any problems?

Answer 1

yeah, thatd be cool.

but intullectual property is still a thing. so you shouldnt use the sprites, themes, motifs, or anything without a proper nod or permission.

(undertale definatley stole a big part of the "battle" sequence from pokemon so...)

Answer 2

go upload it!!👏