This Rockman 2 Basic Master Ver1.0 is a really excellent remake of the second game created by tatsu in 2017. In this recording, since there are no original-game item assists, you can't wall-clip the way you could in traditional remakes. But because of the characteristics of Bubble Man's weapon, you can still do some wall-passing in certain places. Mostly, it's done by climbing stairs off-screen to clip through walls, combined with some low-wall designs where you can use the stair up/down collision to pass through walls. Especially in Wily Castle 4, due to the map design, you can clip through walls at the start, letting you quickly abuse the glitch and item 3 assist to suicide and warp to the boss room. Since you start with three assist items, defeating the eight bosses doesn’t give any more. However, because of this remake’s features, you can’t use delayed scrolling to speedrun through stages, so most of the run is just normal speedrunning.