For people who get stuck on the first few levels here is a tip:
1) Dash the enemies and then dive while dashing (K) so they are knocked down
2) The enemies you knocked down will now follow you so get them all into a cluster then charge again knocking them down.
3) The enemies will all be in attacking range of a punch so then use the attacks to hit them all at once. This also helps so you dont get injured as much.
Hope this helps everyone who is stuck!