I remember in the last topic, back when bushing revealed his findings regarding the DSi's different modes (i.e. how the DSi uses only half its CPU clock speed and a portion of its memory when playing normal DS carts), and I offhandedly mentioned that the DSi had some extra power that was likely not utilized by the download games. At the time, I figured that DSi cartridges would be coming, but I was not sure if the firmware was capable of hybrids. Now that both exclusive and hybrid carts have been confirmed, well...
The comparisons with the Game Boy Color are not surprising, as:
- The GBC had twice the CPU clock and four times the memory as the GB, the DSi allegedly has twice the CPU clock and four times the memory as the DS.
- GBC could play carts from its immediate predecessor (GB), DSi can play carts from its immediate predecessor (DS); anything older was purchased separately

(Game & Watch Collections:rumoured DSi VC)
I will establish the GBC as the highest point on the range. According to
Wiki's list, 467 GBC games were released, Nintendo's
old list establishes that around 300 of those titles were GBC-exclusive titles, making 167 of them hybrids. If it sounds a bit high, consider taking a look at
Nintendo's annual game release breakdown, which proves that the numbers are reasonable. Another chart of note is Nintendo's
hardware/software total sales chart.
Some interesting points can be derived from these fiscal-year breakdown charts:
1. This is the first part of a key difference: The release of the GBC came at the clear tail-end of the GB's game title life-span in the US (Compare FY3/1998 in the
game release chart, with the next fiscal year, then the game explosion that came in the two years after that). Also, despite selling about 20-25 million GBCs (My estimate) out of a total of 118 million GB/GBCs, the release of the GBC managed to double the library of the Game Boy line, mostly with GBC exclusives, in just three years.
2. With their last handheld (GBA), you can map out the point where Nintendo started to move their support to the DS by looking at their number of releases. They seem to have been having the same sort of downtrend since FY3/2008 (4/2007-3/2008). When they update these charts in a few weeks, FY3/2009 will only show Nintendo producing about 8-14 DS games in the Americas and Japan each, quite a decrease since FY3/2007's high range of 21-34 games. With this in mind, much like the end of the GBA's lifespan (Don't mind the 11 game figure for Nintendo Japan in their last GBA year: seven were Bit Generations games, then there were the ports of FFV and VI they published, along with Rhythm Tengoku, and of course Mother 3), Nintendo seems to be gearing up to move their support to a "successor," the DSi in this case.
Going back to the key difference between the DSi and the GBC, it is important to reiterate that the GBC was released at the tail-end, when the GB was effectively dead in terms of US game releases. The DSi however, has been released a bit... early by comparison, especially if Nintendo is trying to repeat history. Rather than a release at the tail-end, the DSi seems to have been released at what may be a possible peak - the start of a downtrend in game releases. This scenario may not follow the same route as the GBC, which leads me to think...
-Prediction: Unlike the GBC, there will be more hybrid carts than exclusive carts for the DSi. Certainly, a difference between the DS and the original GB, there will still be a sizable active market in the DS that publishers would be hesitant to leave out.
-Continuation: Not to worry, as there will still be a number of DSi exclusives, as even though the DSi does not have 100 million under its belt, it still has the combined advantage of a user-base that is actively looking for games, and a currently small field of competitors (As of Dec. 2008 in the Americas, DS: 870 carts, DSi: 0). In the unlikely event that a doom saying theory comes true, then judging by Nintendo's history, the DS2 will likely be backwards compatible with the DS and DSi library.
Anyways, below is a scale with the GBC at the top, with another item comparable to the DSi, the Nintendo 64 Expansion Pak, at the lowest end of the range. ~60 games in total supported the EP, but only about 5 required it (Majora's Mask, Perfect Dark, DK64, Starcraft 64, Tony Hawk's Pro Skater 2). This would serve as a good minimum point, as the number of hybrid carts will increase as time goes on, to appeal to both DS segments, and I think that 5 would be a number that accurately represents the least amount of risk that publishers would be willing to take.
55
-------------------------------------169 Hybrids
05
-------------------------------------300 Exclusives
|--------------------|--------------------|---------->
N64 ExPk
-------------------------------GBC
To close this post off, I'd like to share what I think would be potential DSi hybrids and exclusives.
Announced games that could potentially become hybrids:
Dragon Quest IX - The sudden delay (5 months) is strangely long, even for the discovery a serious bug. One rumor that has been going around is that Level 5 may use the extra time add DSi extras. While I think the bug story is true, it is difficult to completely discount this unlikely possibility. DQIX looks to be pushing the DS' limit, and the extra power in the DSi could make it a suitable early hybrid cart.
Kingdom Hearts 368/2 Days - Another game that looks like it could benefit from the DSi's extra power, and we are still far enough away from release that they could reasonably add some hybrid features.
Legend of Zelda: Spirit Tracks - Same story as the others, and this could fit Nintendo's need for a flagship hybrid title, just like Link's Awakening DX for the GBC.
Pure speculation of future hybrids and/or exclusives:
Animal Crossing Wild World 2 (Hybrid) - Nintendo reps mentioned a capability perfect for an Animal Crossing title at GDC: Taking photos of things and converting them to textures.
New Super Mario Bros. 2/Nintendogs 2: Nintencats (Exclusive) - The predecessors of both are top-selling DS titles; their sequels would make the perfect flagship DSi-exclusive titles for Nintendo.
Metal Gear Ghost Babel 2 (Exclusive) - And keeping with Konami's US naming scheme for the first Ghost Babel for the GBC, they would name this Metal Gear Solid 4 in the US.
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Historical Data page in NoJ's investor relations section - Check back in a few weeks when they release their annual report of FY3/2009.