1. I see the game lags when enemies appear on the screen. Did you try destroying enemies you came across? I usually take them down, but it's best to avoid the machine gun grunts, and depending on your next move, you might not defeat them. 基本的には倒してますがマシンガン雑魚は避けたほうがいいし次の行動次第で倒してない場合もある 2. On 4:18 you could save some time, while touching the wall spikes, if you looked left to fall to the right. That would save some time. On 9:11 you do that. Taking the right path at 4:18 is the shortcut. Going down will lead to enemies appearing, and you'll end up having to come back up anyway. 4:18は右に行くのがショートカットになる 下に行くと敵がでて最終的に上ってくることになる 3. Why did you take invincibility in Level 3-1 on 7:15, if you can destroy riders by spinning? You do so on 7:54 and it doesn't look like a big time lose. The main reason for being invincible is to reduce frame drops, but using a brake attack might work too. I try to avoid using jump attacks since they slow me down, but sometimes it can't be helped. 無敵を取っているのは処理落ち軽減だがブレーキ攻撃でいいかもしれない ジャンプ攻撃は遅くなるのでなるべく出したくないがしょうがないときもある 4. If you need to go down, why do you move off platforms to fall if you can do the jump off ledges trick? I'm not entirely sure what this means, but I'll answer based on my guess. When landing after a jump, you get stuck for a moment. So unless you're hitting your head on an obstacle or just descending, you jump in the direction you're moving to build up speed. これはちょっと意味がわからないが予想で答える ジャンプの落下時地面に着地すると硬直が発生するので頭を障害物にぶつけたり下に降りるだけ以外の場面では進行方向にジャンプしスピードを稼いでいる 5. The same concerns jumping on ledges. On 9:22, you jump and stick to the wall, absorbing momentum you could use when you move high enough to perform a straight jump. I don't understand this either, so I'll answer based on guesswork. Whether there's a wall or not, holding the left/right keys allows for a slightly higher jump, so I use it. When performing a jump attack on the Stage 2 boss, you won't reach it unless you hold the keys. これも意味がわからないので予想で答える 壁があってもなくても左右キーを入れていれば少し高いジャンプが出るので使ってる 2面ボスへのジャンプ攻撃時キーを入れてないと届かない In short, the optimization is questionable

There seems to be an unfamiliar operation, but bizhawk is too new and crashes along with the emulator midway.

There seems to be an unfamiliar operation, but bizhawk is too new and crashes along with the emulator midway. I tried shortening it by about 24 seconds, but I'm giving up. https://tasvideos.org/UserFiles/Info/638994783179949263?handler=Download 知らない操作があるみたいですがbizhawkが新しすぎて途中でエミュごと落ちます 24秒ほどちぢめましたがあきらめます