A b2 loop is two b+2,f~n in a row by Lee in a juggle. B2 loops both extend Lee's wall carry and make it more flexible.
While b2 loops are great for optimizing wall carry, they don't add much damage. For example, the staple d/f+2 combo route compared with alternatives:
|65||4,u+3 b+2,f~n(x3) ws2,4 S! f+2,1|
|63||4,u+3 b+2,f~n 1,2,f~n ws2,4 S! f+2,1|
|62||4,u+3 b+2,f~n ws2,4 S! b+2,f~n ws2,3|
- b+2,f~n takes 34 frames
- the next b+2,f~n must be input no later than 3 frames after to connect
Given this, it's best to target a tempo of 35 frames. This way you can be off-tempo a little and still hit the loop.
B2 loops are hard because of how the input buffer works in this case. Usually, you're able to input the next move in a combo shortly before the last one ends, and it'll act like you timed it perfectly.
With b2 loops, however, there's a catch:
- If you input b before 2, you'll buffer a MS b cancel
- If you input 2 before b, you'll buffer a 2 jab
So to use the input buffer for b2 loops, you have to press b and 2 on the same frame.
This isn't quite as useful as it seems. If you use the input buffer, you throw your tempo off. You're generally better off staying on tempo, especially for practising. It can however be useful when you need a frame perfect b2 loop, such as when the opponent is slightly off-axis.
See also: Lee combos#B1 link
Buffering is important to how the b1 link works. The b+1 must come out exactly when the b+2 ends, so you must press b and 1 on the same frame. Therefore, the b+1 link will always be bufferable, so it actually has a very lenient timing. For this reason, you want to time a b1 link a bit earlier than you would a b2 loop.
In isolation, b2 loops are not that hard. The window is 3 frames. The hard part is never dropping it.
Because the extra damage from a b2 loop is so small, it's not sensible—if your goal is only to win the current game—to attempt a loop until your hit rate is over 95%.
How do you get to this point? You might think the only way is to grind out hour long practise sessions. This will of course work, but do you really want to do that?
If you want a life outside of practising b2 loops, the answer is simple: practise while waiting for opponents. Try them in actual games occasionally. Don't force it.
You'll lose a lot of games to dropped b2 loops. It's unavoidable.
B2 loops are a commitment to Lee. It's a decision you make after playing him for a while, when the pain of dropped loop can't phase you, when you're ready to say with confidence that you're a Lee player.
- Against big characters, or if the opponent is higher up when first b+2,f~n connected (e.g. d/f+2 b+2,f~n), this window can be up to 2 frames longer.