[2]finally, i'd definitely say im not a terrible player. i only sank 8 hours into this game until i decided to stop playing but i had fully grasped and learned all mechanics, played high skill cap characters, learned to combo and such. i put a lot of time into the first game and i definitely enjoyed it more too. when playing with players with bad connection or such i really cant win, they abuse it and i cant read it, due to teleporting and quick deployment of specials. this genuinely sucks all fun out of the game for me. i feel i can beat some opponents but get punished by the design of the game. i might try picking this back up at some point but im sure the problems may still persist.

[1]i appreciate the response, im glad you took my point of view and gave me other points to see about.

despite what said, however, a lot of problems still persist after reading through this. my internet is generally a stable 125MB/s (1000mbs, private wiring) so im sure my network latency isnt an issue. so it generally doesnt happen on other games unless they have a netcoding problem; or even a server problem.
going to the official discord to find other players to play with may not be a bad option, it opens up more possibilities for the game and im sure i'd enjoy it, but i still wont get that same kick i get from playing a ranked mode which has actual skill groups. perhaps there is a group of users which does that but i still think the same problem may arise anyhow.

part 3:

It probably won't help you but personally I don't have instable internet but when I play with people who have one the things you describe happens. But even so if I encounter lag, as an experienced player I learned to read the game and to predict my enemy so I can predict lag too. If an EU player want to play with NA player he will certainly have lag so we all must learn how to deal with it even if I agree with you it would be great to don't have any. In reality lag is present in almost every online game.
Lastly I must say that lag in this game is pretty frustating mostly against opponent that use it dirty at their avantage. But it is mostly really bad player that can only win with that by using character like Switch or else. When you get good at this game you understand how to counter that but if you just began the game I understand how frustating it could be and also that you can't get better if you don't play.

I hope you will be able to enjoy this game.

part 2:

I understand you cannot enjoy the game with lag like that, maybe I can recommand you to go on the official Discord https://discord.gg/reptilehideout and look for people to play with which are really close to your location and to be known as people with really good internet. Like that you should be able to know if it's your internet or the game the problem.
You can also check with another internet connection (like your phone maybe?) to see if the ping even if a bit higher, can be more stable/constant. Also if you host the game, the lag should be reduced.
If it doesn't help you at all you can ask for help in the Discord the community is nice and will try to help you, and if you don't find any help you can still ask for a refound maybe the devs will accept.

my text is too long so I cut it into parts
part 1:

Thanks for your answer.
Usually this happens when your network connection is not stable and can vary a lot from low ping to high ping. I wonder if you have other games when this happens or not at all ?
Usually the netcode isn't bad in a versus fighting game like this but as always it depends more of your internet quality than the netcode.
Also the matchmaking is supported by Steam.

generally, when i play online games with others, may it be ranked matches or qp, or even customs, the opposing player(s) tend to teleport around, or the ball teleports around, this can happen on super low ping too. it personally makes it unplayable to the point where i want to quit matches due to the fact that i physically cannot win no matter what i do, due to being hit pointlessly and not being able to follow what is happening. once in a blue moon this doesnt happen, which is where i enjoy this game. it isnt a bad game, but its online play is designed poorly

Hi can you explain more about what is so bad in the netcoding and matchmaking please ?
I have a lot of hours playing this game and I don't think it's bad at all.