Ok then, Asriel has an infinite amount of 4 dimensional power, as proved by his stats, and in case those guys say that it's a gameplay mechanic, it is not, and here's why: Undertale has two sets of stats: internal stats and CHECK stats. Internal stats are not made visible within the game itself and are only found by looking in the game's files. These are the stats that influence how much damage a character can do and how much they can take, just like traditional RPG stats. CHECK stats are, as the name implies, the stats seen when using the CHECK option on an enemy. These stats have no affect on the gameplay whatsoever, and exist only to show how strong one character is compared to another, so, it can be used to scale Asriel from other feats, such as Chara destroying reality or things like that.
Ok, now that we know how poweful Asriel is, let's talk about what he can do: Asriel cannot by damaged by physical means alone, no mater how much you attack him, you'll always miss. He also assumed total control over the timeline, which allows him to manipulate time, travel in time, it makes him acausal and he can even erase the entire timeline if he wants to. Asriel, as well as many Undertale characters, can attack the opponet's SOUL directly with magical attacks, destroying them in both physical and spiritual level, and is also capable of Danmaku, which is a very dangerous combination, since it creates a bullet hell of magical soul damage, if his opponet doesn't have resistance to soul attacks, he is basically screwed.
