I tried saving and loading a state, but the resulting images differ. Mario shows a different animation frame. Might be related to #99

from pyboy.utils import WindowEvent
import pyboy as pyboy
import numpy as np
import io

# Load Super Mario Land and progress to start of game
boy = pyboy.PyBoy('SuperMarioLand1.gb')
boy.set_emulation_speed(0)
for i in range(100):
      boy.tick()