Looping at Bounds is smooth.

'Phantom' triangles allow the edge looping of the player controlled
triangle to appear seamless. 2 phantom triangles are used, allowing the
triangle to be on 3 edges/corners at once. An optimal/perfectionist
number would be 4.

3 were required at minimum. Ex: When triangle was near bottom-left
corner, system did not know whether to draw the off-screen phantom at
the opposite top or opposite left sides, resulting in one transition to
jump.