The levels get bigger, but you face off against the exact same enemy types throughout and you're doing the exact same thing in each level, breaking the power source for a light shield so you can move on to the next area. (ludophilelab.com)
At some points in the game it feels like they threw it in there as an after thought just to extend the play time, with some entire chapters being room after room with the same enemy type just to slow you down. (metacritic.com)
As for combat, you'll first encounter enemies individually or in small groups, pairing the same enemy types together for easy management. (cogconnected.com)