v.1 create replit
v.2 create screen
v.3 create player
v.4 turn left
v.5 turn right, speedup
v.6 start border
v.7 draw border
v.8 border checking
v.1 create goal
v.2 collision concept
v.3 find distance
v.4 goal jump
v.1 isCollision function
v.1 move goal
v.2 goal check boundary
v.1 create more goals
v.2 boundary and collision check
v.1 tracer & background
v.2 move to idle
v.3 play sound
v.1 create score
v.2 write score (final)