Singapore has been described as a "managed democracy". There are genuinely free elections, and there's an actual opposition, but the government/ruling party (they're largely inseparable at this point) exerts a heavy hand to ensure they keep their supermajority.

One of the big questions of Singaporean politics is what would happen if there ever was a "freak result" (in LKY's words) and the opposition won a majority, since thanks to the first past the post voting system further exacerbated by mandatory "group representative constituencies" the winner always wins big and coalitions or minority governments are not an option.