Great fan of the game here. Infinity mode got completely screwed by so-called "low power tunnels" levels, or whatsoever - would it be possible to get rid of these in infinity mode?
Come on, impossible wasn't that hard. Did it in 35 minutes.
Try this (lvl5): 1) do not try to evade the rider behind you - just hold your position in front of him, so he cannot stab you.
2) when you block incoming arrows, block once you see the first arrows - this gives you time to perform another action just after - like throwing a javelin on farmer.
3)jumping over or ducking over obstacle is the priority, even before arrows are expected.
Those were actually a bug that I decided not to fix (until now). I felt they fit with the event, even though the difficulty wasn't balanced.