I love the idea of settings and other unusual aspects being bound to gameplay. I wish you had gone further with changing controls or maybe have enemies with both an upside and a downside but oh well it's only a jam. Overall I liked it.
Yeah, we focused on getting the core idea, gameplay and feel to be just right - the very next step was exactly putting in more types of enemies to mess with the settings AND a bigger difficulting - mainly, no awkward times where there's no enemy on the screen.
Thank you for the feedback though, glad you enjoyed the idea!