Critics had mixed reactions to the gameplay changes from previous series entries. Regarding the new item system, a critic from Game Revolution noted that it prevents the need to return to item boxes to empty inventory. However, he also noted a drawback, in that it introduces more backtracking to pick up an item that was dropped. Contrary to this, Mark MacDonald of 1UP.com praised it for eliminating the backtracking that slowed down previous series entries. Varanini from GameSpot gave credit to Capcom for attempting a new item system, but it is ultimately not too useful since it is easiest to drop all the items in a save location anyway. Casamassina of IGN called the system "perfect" and much better than the item boxes in previous games. Regarding the partner system, Varanini said that it works well, although he found the puzzles too simple and the companion's AI was lacking at times. Bedigian of GameZone praised the companion system for adding a new dimension to the "Resident Evil" series and it left him excited for future games. Steinberg of GameSpy liked the puzzles which required both characters working together, but he was not keen to fight alongside them, feeling like he was "babysitting" the other character due to weak AI.