MeowL vs Excel

Time plays from 0 s (▶); each press of Space, ↑ or a tap on the drawing records the moment as a flap. A flap sets the climb speed to $v_{flap}$; between flaps MeowL falls with gravity $g$, so with $t_k$ the last flap and $y_k$ the height there, $y = y_k + v_{flap}(t - t_k) - g (t - t_k)^2 / 2$. The heights at the flaps add up in closed form: $y_k = y_0 + \sum (v_{flap} \Delta t - g \Delta t^2 / 2)$ over the intervals between flaps. Columns of spreadsheet errors move past at $v_x$; MeowL crashes when it is within $r_c$ of a column outside its gap, or of the ground or the sky.

A cat-owl is a circle of radius r_c with wings. No air drag. Excel errors do not move up or down, and do not get fixed either.

0 ≤ t ≤ 120 s. The play stops at a crash (stops when: crash); the score counts the columns passed until then.