you cannot have an illegal forward pass unless you start with a play from scrimmage,this was a kick so you have a forward lateral.
Aden, there is no such animal as a "forward lateral" in football. All passes are either forward or backward.
From the 2009 NFHS Rules Book:
"A forward pass is a pass thrown with its initial direction toward the
opponent’s end line. A backward pass is a pass thrown with its initial direction parallel with or toward the runner’s end line."
"An illegal forward pass is a foul. Illegal forward passes include:
a. A pass after team possession has changed during the down."
Since possession had changed during this down, Red has thrown an illegal forward pass.
