Thanks, glad you enjoyed it in its current state.
And thanks for bug report :)
Thanks for the feedback - I definitely used the "cups-as-ramps meta" when testing and didn't really think of it as a bad thing to be able to do as i had hopes the different proportions would lead to you being more keen to hold one side than just ramp.
That said sticking to the theme/feel is likely better and the rotation should be capped to +- 90 deg