2b

2b is an optimization of 2D BF with 4-7 commands depending on how you count.

Commands

> go forward
@ turn right
= bit flip
[] brackets
OPTIONAL COMMANDS:
. output
, input

Corresponding with 2DFuck

v^<> - combinations of > and @
lrx - not needed for turing-complete
! - =
. - .
, - ,
[] - []
? - not needed for turing-complete