def get_adjacent_tiles(eris, level, coordinates):
    """Get adjacent tiles from coordinates at level on eris."""
    adjacent = []
    for level_change, (row, col) in coordinates:
        if row == 2 and col == 2:
            continue
        try:
            adjacent.append(
                eris[level + level_change][row][col])
        except KeyError:
            pass
    return adjacent