Escaping the Mount

First, use an upa to move their weight forward. Then push their knee and shrimp your leg free, overhook with this leg in half-guard. Switch to your opposite hip and frame the neck and far biceps. Escape to the guard.

If you cannot move their knee, shrimp way from their leg to create space to bring your knee inside. Switch hips and frame to escape your other leg into hooks inside guard.

If they are defending you pushing their knee, tilt on your hip and bring your leg over to their opposite leg, dragging their foot between your legs. Now push to establish half-guard and then shrimp to guard.

If they grapevine your leg, straighten one rapidly then shrimp out. Alternatively you can push their hook off with your opposite foot. If they cross their ankles, step on them and then shrimp.